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Go Math Answer Key

Go Math Answer Key for Grade K, 1, 2, 3, 4, 5, 6, 7, and 8

Go Math Answer Key:  HMH Go Math Answer Key for Grade K, 1, 2, 3, 4, 5, 6, 7, and 8 are provided helps students to have learning targets and achieve success at chapter and lesson level and makes learning visible.

Download Go Math Answer Key for Grades K-8 | HMH Go Math Solution Key for Grades Kindergarten, 1, 2, 3, 4, 5, 6, 7, 8

All the Concepts in the CCSS Go Math Answer Key for Grades Kindergarten, 1, 2, 3, 4, 5, 6, 7, 8 are given with straightforward and detailed descriptions.

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Free Download Go Math Answer Key from Kindergarten to 8th Grade

Students can find Go Math Answer Keys right from  Primary School to High School all in one place. You just need to tap on the quick links available in order to access them and learn all the Chapters in each grade. Once you tap on the quick link you will be directed to the respective Grade Solutions Key wherein you can access the complete information. You can find Solutions for all the Go Math Textbook Questions free of cost and we don’t charge any amount.

  • Go Math Kindergarten Answer Key

Go Math Grade 1 Answer Key

Go math grade 2 answer key, go math grade 3 answer key, go math grade 4 answer key, go math grade 5 answer key, go math grade 6 answer key.

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Go Math Grade K Answer Key

  • Chapter 1 Represent, Count, and Write Numbers 0 to 5
  • Chapter 2 Compare Numbers to 5
  • Chapter 3 Represent, Count, and Write Numbers 6 to 9
  • Chapter 4 Represent and Compare Numbers to 10
  • Chapter 5 Addition
  • Chapter 6 Subtraction
  • Chapter 7 Represent, Count, and Write 11 to 19
  • Chapter 8 Represent, Count, and Write 20 and Beyond
  • Chapter 9 Identify and Describe Two-Dimensional Shapes
  • Chapter 10 Identify and Describe Three-Dimensional Shapes
  • Chapter 11 Measurement
  • Chapter 12 Classify and Sort Data
  • Chapter 1 Addition Concepts
  • Chapter 2 Subtraction Concepts
  • Chapter 3 Addition Strategies
  • Chapter 4 Subtraction Strategies
  • Chapter 5 Addition and Subtraction Relationships
  • Chapter 6 Count and Model Numbers
  • Chapter 7 Compare Numbers
  • Chapter 8 Two-Digit Addition and Subtraction
  • Chapter 9 Measurement
  • Chapter 10 Represent Data
  • Chapter 11 Three-Dimensional Geometry
  • Chapter 12 Two-Dimensional Geometry
  • Chapter 1 Number Concepts
  • Chapter 2 Numbers to 1,000
  • Chapter 3 Basic Facts and Relationships
  • Chapter 4 2-Digit Addition
  • Chapter 5 2-Digit Subtraction
  • Chapter 6 3-Digit Addition and Subtraction
  • Chapter 7 Money and Time
  • Chapter 8 Length in Customary Units
  • Chapter 9 Length in Metric Units
  • Chapter 10 Data
  • Chapter 11 Geometry and Fraction Concepts

Grade 3 HMH Go Math – Answer Keys

  • Chapter 1: Addition and Subtraction within 1,000
  • Chapter 2: Represent and Interpret Data
  • Chapter 3: Understand Multiplication
  • Chapter 4: Multiplication Facts and Strategies
  • Chapter 5: Use Multiplication Facts
  • Chapter 6: Understand Division
  • Chapter 7: Division Facts and Strategies
  • Chapter 8: Understand Fractions
  • Chapter 9: Compare Fractions
  • Chapter 10: Time, Length, Liquid Volume, and Mass
  • Chapter 11: Perimeter and Area
  • Chapter 12:Two-Dimensional Shapes

Grade 3 HMH Go Math – Extra Practice Questions and Answers

  • Chapter 1: Addition and Subtraction within 1,000 Extra Practice
  • Chapter 2: Represent and Interpret Data Extra Practice
  • Chapter 3: Understand Multiplication Extra Practice
  • Chapter 4: Multiplication Facts and Strategies Extra Practice
  • Chapter 5: Use Multiplication Facts Extra Practice
  • Chapter 6: Understand Division Extra Practice
  • Chapter 7: Division Facts and Strategies Extra Practice
  • Chapter 8: Understand Fractions Extra Practice
  • Chapter 9: Compare Fractions Extra Practice
  • Chapter 10: Time, Length, Liquid Volume, and Mass Extra Practice
  • Chapter 11: Perimeter and Area Extra Practice
  • Chapter 12: Two-Dimensional Shapes Extra Practice

Common Core Grade 4 HMH Go Math – Answer Keys

  • Chapter 1 Place Value, Addition, and Subtraction to One Million
  • Chapter 2 Multiply by 1-Digit Numbers
  • Chapter 3 Multiply 2-Digit Numbers
  • Chapter 4 Divide by 1-Digit Numbers
  • Chapter 5 Factors, Multiples, and Patterns
  • Chapter 6 Fraction Equivalence and Comparison
  • Chapter 7 Add and Subtract Fractions
  • Chapter 8 Multiply Fractions by Whole Numbers
  • Chapter 9 Relate Fractions and Decimals
  • Chapter 10 Two-Dimensional Figures
  • Chapter 11 Angles
  • Chapter 12Relative Sizes of Measurement Units
  • Chapter 13 Algebra: Perimeter and Area

Grade 4 Homework Practice FL.

Common Core – Grade 4 – Practice Book

  • Chapter 1 Place Value, Addition, and Subtraction to One Million  (Pages 1- 20)
  • Chapter 2 Multiply by 1-Digit Numbers  (Pages 21 – 47)
  • Chapter 3 Multiply 2-Digit Numbers  (Pages 49- 65)
  • Chapter 4 Divide by 1-Digit Numbers  (Pages 67 – 93)
  • Chapter 5 Factors, Multiples, and Patterns  (Pages 95 – 109)
  • Chapter 6 Fraction Equivalence and Comparison  (Pages 111 – 129)
  • Chapter 7 Add and Subtract Fractions  (Pages 131 – 153)
  • Chapter 8 Multiply Fractions by Whole Numbers  (Pages 155- 167)
  • Chapter 9 Relate Fractions and Decimals  (Pages 169- 185)
  • Chapter 10 Two-Dimensional Figures  (Pages 187- 204)
  • Chapter 11 Angles  (Pages 205- 217)
  • Chapter 12 Relative Sizes of Measurement Units  (Pages 219- 244)
  • Chapter 13 Algebra: Perimeter and Area  (Pages 245- 258)

Grade 4 Homework FL. – Answer Keys

  • Chapter 2 Multiply by 1-Digit Numbers Review/Test
  • Chapter 3 Multiply 2-Digit Numbers Review/Test
  • Chapter 4 Divide by 1-Digit Numbers Review/Test
  • Chapter 5 Factors, Multiples, and Patterns Review/Test
  • Chapter 6 Fraction Equivalence and Comparison Review/Test
  • Chapter 7 Add and Subtract Fractions Review/Test
  • Chapter 8 Multiply Fractions by Whole Numbers Review/Test
  • Chapter 9 Relate Fractions and Decimals Review/Test
  • Chapter 10 Two-Dimensional Figures Review/Test
  • Chapter 11 Angles Review/Test
  • Chapter 12 Relative Sizes of Measurement Units Review/Test
  • Chapter 13 Algebra: Perimeter and Area Review/Test
  • Chapter 1: Place Value, Multiplication, and Expressions
  • Chapter 2: Divide Whole Numbers
  • Chapter 3: Add and Subtract Decimals
  • Chapter 4: Multiply Decimals
  • Chapter 5: Divide Decimals
  • Chapter 6: Add and Subtract Fractions with Unlike Denominators
  • Chapter 7: Multiply Fractions
  • Chapter 8: Divide Fractions
  • Chapter 9: Algebra: Patterns and Graphing
  • Chapter 10: Convert Units of Measure
  • Chapter 11: Geometry and Volume
  • Chapter 1: Divide Multi-Digit Numbers
  • Chapter 2: Fractions and Decimals
  • Chapter 3: Understand Positive and Negative Numbers
  • Chapter 4: Model Ratios
  • Chapter 5: Model Percents
  • Chapter 6: Convert Units of Length
  • Chapter 7: Exponents
  • Chapter 8: Solutions of Equations
  • Chapter 9: Independent and Dependent Variables
  • Chapter 10: Area of Parallelograms
  • Chapter 11: Surface Area and Volume
  • Chapter 12: Data Displays and Measures of Center
  • Chapter 13: Variability and Data Distributions

Go Math Answer Key for Grade 7

  • Chapter 1: Adding and Subtracting Integers
  • Chapter 2: Multiplying and Dividing Integers
  • Chapter 3: Rational Numbers
  • Chapter 4: Rates and Proportionality
  • Chapter 5: Percent Increase and Decrease
  • Chapter 6: Algebraic Expressions
  • Chapter 7: Writing and Solving One-Step Inequalities
  • Chapter 8: Modeling Geometric Figures
  • Chapter 9: Circumference, Area, and Volume
  • Chapter 10: Random Samples and Populations
  • Chapter 11: Analyzing and Comparing Data
  • Chapter 12: Experimental Probability
  • Chapter 13: Theoretical Probability and Simulations
  • Chapter 1 Real Numbers
  • Chapter 2 Exponents and Scientific Notation
  • Chapter 3 Proportional Relationships
  • Chapter 4 Nonproportional Relationships
  • Chapter 5 Writing Linear Equations
  • Chapter 6 Functions
  • Chapter 7 Solving Linear Equations
  • Chapter 8 Solving Systems of Linear Equations
  • Chapter 9 Transformations and Congruence
  • Chapter 10 Transformations and Similarity
  • Chapter 11 Angle Relationships in Parallel Lines and Triangles
  • Chapter 12 The Pythagorean Theorem
  • Chapter 13 Volume
  • Chapter 14 Scatter Plots
  • Chapter 15 Two-Way Tables

Give your kid the right amount of knowledge he needs as a part of your preparation by taking the help of our HMH Go Math Answer Key for Grades K-8. Resolve all your queries and assess your preparation standard using the Common Core Go Math Solution Key.

Practicing from the Go Math Answer Key for Grades K to 8 will provide a grade by grade roadmap and prepares students for College Readiness. Gradewise HMH Go Math Answer Key provided will develop problem-solving skills among students thereby helping them to Think, Explore and Grow. The Diverse Opportunities provided helps Kids to master the content with engaging activities.

Characteristics of Go Math Answer Key for Grades K to 8

Go through the below-listed features of referring to the HMH Go Math Anwer Key for Grades K to 8. They are outlined as follows

  • All the Go Math Answer Key for Grades K to 8 are easy to download and we don’t charge any penny from you.
  • Step by Step Solutions provided in the HMH Go Math Practice Key is aligned as per the College and Career Expectations.
  • Solving from the Math 101 Practice Key helps you inculcate Higher Order Thinking Skills and you can answer any Question from your Homework, Assessment, or Review Test.
  • More Rigorous Content made available meets the Common Core State Standards Initiative.
  • You can gain a deeper knowledge of mathematical concepts and find solutions to all the Questions from Go Math Textbooks for Grades K, 1, 2, 3, 4, 5, 6, 7, 8

FAQs on Common Core HMH Go Math Answer Key

1. When Can I use the Go Math Answer Key for Grades K-8?

You can use the HMH Go Math Answer Key for Grades K to 8 while practicing the Go Math Textbook Questions as a part of your Homework or Assessment and make the most out of them.

2. Is there any site that provides the Common Core Go Math Solutions Key for Grades K, 1, 2, 3, 4, 5, 6, 7, 8?

Yes, you can find Go Math Answer Key for Grades K, 1, 2, 3, 4, 5, 6, 7, 8 all in one place i.e. ccssmathanswers.com a trusted and reliable portal.

3. Can I download HMH Go Math Answer Key PDF for free?

Yes, you can download the HMH Math 101 Practice Key for free on our page via quick links available and we don’t charge any amount for it.

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lesson 7 9 homework answer key

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Math Expressions Answer Key

Math Expressions Grade 4 Unit 4 Lesson 9 Answer Key Practice with Multistep Problems

Solve the questions in Math Expressions Grade 4 Homework and Remembering Answer Key Unit 4 Lesson 9 Answer Key Practice with Multistep Problems to attempt the exam with higher confidence. https://mathexpressionsanswerkey.com/math-expressions-grade-4-unit-4-lesson-9-answer-key/

Math Expressions Common Core Grade 4 Unit 4 Lesson 9 Answer Key Practice with Multistep Problems

Math Expressions Grade 4 Unit 4 Lesson 9 Homework

Solve each problem.

Unit 4 Lesson 9 Practice With Multi Step Problems Grade 4 Math Expressions Question 1. 5 × 7 + 9 = t Answer: 5 x 7 + 9 = 44

Explanation: 5 x 7 + 9 = t 35 + 9 = t 44 = t Therefore, t=44.

Lesson 9 Practice with Multistep Problems Answer Key Grade 4 Question 2. 9 × (1 + 3) = m Answer: 9 × (1 + 3) = 36

Explanation: 9 × (1 + 3) = m 9 x 4 = m 36= m Therefore, m = 36.

Math Expressions Grade 4 Answer Key Question 3. 7 – 2 × 2 = k Answer: 7 – 2 × 2 = 3

Explanation: 7 – 2 × 2 = k 7- 4 = k 3=k Therefore, k = 3.

Unit 4 Lesson 9 Math Expressions  Question 4. (7 × 2) + (4 × 9) = w Answer: (7 × 2) + (4 × 9) = 50

Explanation: (7 × 2) + (4 × 9) = w 14 + 36 = w 50 = w Therefore, w = 50.

Unit 4 Lesson 9 Math Expressions Grade 4 Question 5. (7 – 2) × (3 + 2) = r Answer: (7 – 2) × (3 + 2) = 25

Explanation: (7 – 2) × (3 + 2) = r 5 x 5 = r 25 = r Therefore, r = 25.

Question 6. 8 × (12 – 7) = v Answer: 8 × (12 – 7) = 40

Explanation: 8 × (12 – 7) = v 8 x 5 = v 40 = v Therefore, v = 40.

Question 7. Whitney and Georgia are at the snack bar buying food for their family. Sandwiches cost $4 each. Salads cost $2 each. How much money will it cost them to buy 5 sandwiches and 7 salads? Answer: It will cost $34 for Whitney and Georgia to buy 5 sandwitches and 7 salads

Explanation: Whitney and Georgia are at the snack bar buying food for their family. Sandwiches cost $4 each. Salads cost $2 each 5 sandwiches costs 5 x $4 = $20 and 7 salads costs 7 x $2 = $14 The sum of the costs of sandwitches and salads is 20+14=$34. Therefore, it will cost $34 for Whitney and Georgia to buy 5 sandwitches and 7 salads.

Question 8. Lisa put tulips and roses into vases. Each vase has 12 flowers. The red vase has 7 tulips. The blue vase has twice as many roses as the red vase. How many roses are in the blue vase? Answer: 10 roses are in the blue vase.

Explanation: Lisa put tulips and roses into vases. Each vase has 12 flowers. The red vase has 7 tulips As red vase has 7 tulips and it contains only 12 flowers and the other flowers are roses then 12-7=5 There will be 5 roses in the red vase The blue vase has twice as many roses as the red vase So, 2 x 5 = 10 Therefore, there are 10 roses in the blue vase.

Question 9. Pam has 9 bags of apples. Each bag contains 6 apples. There are 3 bags of red apples and 1 bag of green apples. The rest of the bags contain yellow apples. How many more yellow apples are there than red apples? Answer: 12 yellow apples are more than red apples.

Explanation: Pam has 9 bags of apples.Each bag contains 6 apples. 9 x 6 = 54 apples in all There are 3 bags of red apples (3 x 6 = 18) and 1 bag of green apples (1 x 6 = 6) The rest of the bags contain yellow apples 54-18-6 = 54-24 =30 yellow apples are 30 in number, red are 18 Subtract 18 from 30, 30-18=12 Therefore, 12 yellow apples are more than red apples.

lesson 7 9 homework answer key

Explanation: Clay works on a farm. He packaged eggs into containers that hold 1 dozen eggs each. He filled 4 containers with white eggs and 5 containers with brown eggs 4 containers of white eggs 4 x 12 = 48 5 containers of brown eggs 5 x 12 = 60 Total number of eggs is 48+60= 108 Therefore, Clay collected 108 eggs.

Math Expressions Grade 4 Unit 4 Lesson 9 Remembering

Subtract. Show your new groups.

Math Expressions Common Core Grade 4 Unit 4 Lesson 9 Answer Key 1

Explanation: The difference of 3,146 and 1,960 is 1186.

Math Expressions Common Core Grade 4 Unit 4 Lesson 9 Answer Key 2

Explanation: The difference of 7,504 and 2,738 is 4,766.

Math Expressions Common Core Grade 4 Unit 4 Lesson 9 Answer Key 3

Explanation: The difference of 6,000 and 5,241 is 759.

Solve using any method and show your work. Use estimation to check your work.

lesson 7 9 homework answer key

Explanation: The product of 23 and 88 is 2,024.

lesson 7 9 homework answer key

Explanation: The product of 71 and 49 is 3,479.

Question 6.

lesson 7 9 homework answer key

Explanation: The product of 62 and 67 is 4,154.

lesson 7 9 homework answer key

Explanation: The product of 15 and 38 is 570.

Use an equation to solve.

lesson 7 9 homework answer key

Explanation: An audio book is made up of 8 CDs. Each o the first 7 CDs is 42 minutes long and the final CD is 26 minutes long multiply 42 by 7 and add 26 to find the total number of minutes 42 x 7 = 294, 294+26=320 Therefore, Mark listen to the audio book each day for 320 minutes.

Math Expressions Common Core Grade 4 Unit 4 Lesson 9 Answer Key 4

Solution: Joy bought 3 pounds of mixed nuts and 2 pounds of dried fruit 3 x $5 + 2 x $3 $15+6 $21 Chris bought 1 pound of snack mix and 5 pounds of wildrice and 1 pound of red lentils 1 x $7 + 5 x $2 + 1 x $4 $7+10+4 $21 The sum of amount spent by Joy and Chris is $21+21=$42. Therefore, Joy and Chris spent $42 in the super market.

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Into Math Grade 7 Module 9 Lesson 2 Answer Key Draw and Construct Triangles Given Side Lengths

We included  HMH Into Math Grade 7 Answer Key PDF   Module 9 Lesson 2 Draw and Construct Triangles Given Side Lengths to make students experts in learning maths.

HMH Into Math Grade 7 Module 9 Lesson 2 Answer Key Draw and Construct Triangles Given Side Lengths

I Can determine whether three lengths could be side lengths of a triangle, and, given two side lengths, I can find the range of possible lengths for the third side.

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HMH Into Math Grade 7 Module 9 Lesson 2 Answer Key Draw and Construct Triangles Given Side Lengths 1

Build Understanding

HMH Into Math Grade 7 Module 9 Lesson 2 Answer Key Draw and Construct Triangles Given Side Lengths 2

C. Complete the statements describing the relationship among the three side lengths that do not form a triangle. Use less than, equal to, or greater than. The sum of the lengths of the two shorter sides is ___________ the length of the longer one. Answer: Greater Explanation: The sum of the lengths of the two shorter sides is greater the length of the longer one.

lesson 7 9 homework answer key

E. Complete the statements describing the relationships between the three side lengths that form a triangle. Use less than, equal to, or greater than. The sum of the lengths of the two shorter sides is ____________ the length of the longest side. Answer: The sum of the lengths of the two shorter sides is greater the length of the longest side.

F. Complete the summary of what you have discovered so far for three segments with lengths a, b, and c, where c is the greatest length. If a + b is equal to or ______________ than c, the segments cannot form a triangle. If a + b is ______________ than c, the segments form one triangle. Answer: If a + b is equal to or greater than c, the segments cannot form a triangle. If a + b is less than c, the segments form one triangle.

HMH Into Math Grade 7 Module 9 Lesson 2 Answer Key Draw and Construct Triangles Given Side Lengths 3

Turn and talk Is it possible that four segments cannot form a quadrilateral? Answer: Yes, it forms a quadrilateral. Explanation: A quadrilateral is formed by four  line segments that intersect at their endpoints.

lesson 7 9 homework answer key

Step It Out

HMH Into Math Grade 7 Module 9 Lesson 2 Answer Key Draw and Construct Triangles Given Side Lengths 4

Since the sum of the lengths of two shorter pieces of ribbon is ____________ the length of the longest, Olivia’s niece (can / cannot) make a triangle.

HMH Into Math Grade 7 Module 9 Lesson 2 Answer Key Draw and Construct Triangles Given Side Lengths 5

D. Amil is making a bamboo picture frame. Given the side lengths shown for the first two sides, what is one possible side length that will form a triangular picture frame? 5 + 8 = ___________, so one side length that will make a triangle is __________ inches. Answer: 5 + 8 = 13, so one side length that will make a triangle is 12 inches.

Check Understanding

Question 1. Max has three pieces of oak trim that are 7 inches, 11 inches, and 18 inches long. He wants to use them to make a triangular base for a candleholder. Will the pieces make a triangle? Explain your answer. Answer: No, pieces cannot make a triangle. Explanation: Since the sum of the lengths of two shorter pieces of oak trim is equal to the length of the longest, Max cannot make a triangle.

Question 2. Bella is making a sculpture. She has pieces of copper pipe that are 4 centimeters long and 13 centimeters long. What is a possible third length of copper pipe that will make a triangle? Justify your answer. Answer: 16 units Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 4 + 13 = 17 cm the third side should be less then 17 cm a possible third length of copper pipe that will make a triangle is 16 units

On Your Own

Question 3. Horace is making a shadow box in the shape of a triangle to hold his homerun baseballs. He has pieces of wood 12 inches, 12 inches, and 26 inches long. Show whether these pieces will make a triangle. Answer: 23 inches long Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 12 + 12 = 24 inches the third side should be less then 24 inches these pieces will not make a triangle because of the third side is 23 inches long.

HMH Into Math Grade 7 Module 9 Lesson 2 Answer Key Draw and Construct Triangles Given Side Lengths 6

Question 5. Alan makes triangular potholders and sews edging around the outside. He has pieces of edging 5 inches, 5 inches, and 10 inches long. Show whether these pieces will make a triangle.

lesson 7 9 homework answer key

Question 6. Open-Ended The volleyball team is making a triangular banner for their last home game. They want two of the sides to be 4 feet long each. Determine one possible length for the third side. Justify your answer. Answer: possible length for the third side is less then 8 ft Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 4 + 4 = 8 feet the third side should be less then 8 ft possible length for the third side is less then 8 ft

lesson 7 9 homework answer key

Determine whether each set of numbers could be lengths of the sides of a triangle.

Question 8. 17, 13, 11 ____________ Answer: yes, it can make a triangle. Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 13 + 11 = 24 24 > 17 triangle can form

Question 9. 11, 19, 35 ____________ Answer: No, it cannot make a triangle. Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 11 + 19 = 30 30 < 35 triangle can not form

Question 10. 6, 7, 13 _____________ Answer: No, it cannot make a triangle. Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 6 + 7 = 13 13 = 13

Two side lengths of a triangle are given. Find a possible third length.

Question 11. 5 meters, 12 meters Answer: possible third length is less then 17 meters Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 5 + 12 =17 5 meters, 12 meters are two side lengths of a triangle, a possible third length is less then 17m.

Question 12. 3 feet, 9 feet Answer: possible third length is less then 12 feet Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 3 + 9 =12 feet 3 feet, 9 feet are two side lengths of a triangle, a possible third length is less then 12 feet.

Question 13. 23 miles, 31 miles Answer: possible third length is less then 54 miles Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 23 + 31 =54 23 miles, 31 miles are two side lengths of a triangle, possible third length is less then 54miles.

HMH Into Math Grade 7 Module 9 Lesson 2 Answer Key Draw and Construct Triangles Given Side Lengths 7

Question 15. Karissa is building a triangular landscape border around her mailbox. She has logs 4 feet, 5 feet, and 10 feet long. Show whether these logs will make a triangle. Answer: No, triangle cannot form. Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 4 + 5 = 9 9 < 10 feet triangle can not form, third log must be less then 9 ft

lesson 7 9 homework answer key

Question 18. 8.5, 6, 10 ___________ Answer: yes, lengths form a triangle. Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 6 + 8.5 = 14.5 14.5 >10  triangle can be formed. Yes, set of numbers could be lengths of the sides of a triangle

Question 19. 2.5, 2.5, 4 ____________ Answer: Yes, lengths can form a triangle. Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 2.5 + 2.5 = 5 5 > 4  triangle can be formed. Yes, set of numbers could be lengths of the sides of a triangle

Question 20. 5, 12, 18 ___________ Answer: No, lengths cannot form a triangle. Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 5 + 12 = 17 17 < 18  triangle can not be formed. No, set of numbers could not be lengths of the sides of a triangle.

Question 21. 5 inches, 10 inches Answer: Possible length of third side is less then 15 inches. Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 5 + 10 = 15 inches the third side should be less then 15 in possible length for the third side is less then 15 in

Question 22. 6 yards, 18 yards Answer: Possible length of third side is less then 24 yards. Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 6 + 18 = 24 yards So, the possible length of third side should be less then 24 yards.

Question 23. 9 meters, 21 meters Answer: Possible length of third side is less then 30 meters. Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 9 + 21 = 30 meters So, the possible length of the third side should be less then 30 meters.

I’m in a Learning Mindset!

Did I find a different or unique way to determine whether a set of side lengths could form a triangle? What is it? Answer: Yes, we can find the length of third side in different way. Explanation: The sum of the length of the two sides of a triangle ABC of lengths a, b and c is greater than the length of the third side. a + b = x units So, the third side should be less then x units. possible length for the third side c is less then x units.

Lesson 9.2 More Practice/Homework

lesson 7 9 homework answer key

Question 5. 2, 4, 6 _________ Answer: No, length of the sides of a triangle is not possible. Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 2 + 4 = 6 6 = 6 So, triangle can not be formed.

Question 6. 16, 21, 33 __________ Answer: Yes, length of the sides of a triangle is possible. Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 16 + 21 = 37 37 > 33 Yes, set of numbers could be lengths of the sides of a triangle.

Question 7. 1, 3, 3 ___________ Answer: Yes, length of the sides of a triangle is possible. Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 1 + 3 = 4 4 > 3 Yes, set of numbers could be lengths of the sides of a triangle

Question 8. 6 meters, 8 meters Answer: possible length for the third side is less then 14 meters. Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 6 + 8 = 14 meters So, the third side should be less then 14 meters.

Question 9. 4 feet, 5 feet Answer: possible length for the third side is less then 9 feet. Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 4 +  5 = 9 feet So, the third side should be less then 9 feet.

Question 10. 4.5 yards, 7 yards Answer: possible length for the third side is less then 11.5 yards. Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 4.5 + 7 = 11.5 yards So, the third side should be less then 11.5 yards.

Question 11. Lorelei is making decorative boxes in the shape of triangles. Which of the following could be the lengths of the sides of the boxes? (A) 12 cm, 13 cm, 24 cm (B) 12 cm, 13 cm, 25 cm (C) 10 cm, 10 cm, 24 cm (D) 10 cm, 10 cm, 22 cm Answer: Option (A) Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 12 + 13 = 25 cm So, the third side should be less then 25 cm.

Question 12. Lhu builds dollhouses with triangle-shaped roofs. Which of the following could be lengths of the edges of the roof of a dollhouse? (A) 10 in., 10 in., 20 in. (B) 10 in., 12 in., 24 in, (C) 11 in., 12 in., 24 in. (D) 11 in., 11 in., 20 in. Answer: Option (D) Explanation: The sum of the length of the two edges of a triangle is greater than the length of the third edge 11 + 11 = 22 cm So, the third side should be less then 22 cm. lengths of the edges of the roof of a dollhouse are 11 in., 11 in., 20 in.

Question 13. Select all the sets of numbers that could be lengths of the sides of a triangle. (A) 2, 7, 9 (B) 4, 11, 13 (C) 6, 9, 12 (D) 6, 6, 14 (E) 8, 15, 21 (F) 9, 17, 27 Answer: The following are the sets of numbers that could be lengths of the sides of a triangle. (B) 4, 11, 13 C) 6, 9, 12 (E) 8, 15, 21 Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side.

Question 14. An artist gets strips of metal from a salvage yard to make decorative wall art. He finds strips that are 2.5 feet and 3.5 feet long. Determine one possible length for the third strip if the artist wants to make a triangle. Answer: possible length for the third side is less then 6 feet Explanation: The sum of the length of the two sides of a triangle is greater than the length of the third side. 2.5 +  3.5 = 6 feet So, the third side should be less then 6 feet.

Spiral Review

Question 15. Kevin wants to buy a video game for $45. He also wants to buy 2 game controllers. Each controller costs the same amount. He has a total of $120 to spend. Write and solve an inequality to find how much Kevin can spend on each controller. $37.5 Answer: Kelvin spends $120 Explanation: cost of a video game $45 cost of each game controller is same. 120 – 45 = $75 75/2 = $37.5 Kevin can spend on each controller = $37.5 37.5 +37.5 + 45 = $120

Question 16. Sofia has 16 hours to paint a living room and 2 bedrooms. She spends 7 hours painting the living room. Write and solve an inequality to find how much time she can spend on each bedroom if she splits her time equally. Answer: 4.5hours Explanation: Sofia has 16 hours to paint a living room and 2 bedrooms. Sofia spends 7 hours painting the living room 16 – 7 = 9 hours to paint a living room and 2 bedrooms 9/2 = 4.5 hours can spend on each bedroom if she splits her time equally

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