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Big Ideas Math: Modeling Real Life, Grade 8
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Big Ideas Math: Modeling Real Life, Grade 8 View details
7. Perimeters and Areas of Similar Figures
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Exercise 3 Page 85

The ratio of the perimeters is the same as the ratio between corresponding side lengths.

9/7

Practice makes perfect
Let's start by considering the given similar figures.
similar figures

In the given similar figures, the lengths of two corresponding sides are 9 and 7. Therefore, we can say that the ratio between the corresponding side lengths is 9 7. In similar figures, the ratio of the perimeters is the same as the ratio between the corresponding side lengths.

Ratio of Corresponding Side Lengths 9/7
Ratio of Perimeters 9/7
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arrow_right Try It p.84-85
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Try It 2 (Page 85)
arrow_right Self-Assessment for Concepts & Skills p.85
Self-Assessment for Concepts & Skills 3 (Page 85)
Self-Assessment for Concepts & Skills 4 (Page 85)
Self-Assessment for Concepts & Skills 5 (Page 85)
Self-Assessment for Concepts & Skills 6 (Page 85)
arrow_right Self-Assessment for Problem Solving p.86
Self-Assessment for Problem Solving 7 (Page 86)
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arrow_right Review & Refresh p.87
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Review & Refresh 3 (Page 87)
Review & Refresh 4 (Page 87)
Review & Refresh 5 (Page 87)
arrow_right Concepts, Skills, & Problem Solving p.87-88
Concepts, Skills, & Problem Solving 6 (Page 87)
Concepts, Skills, & Problem Solving 7 (Page 87)
Concepts, Skills, & Problem Solving 8 (Page 87)
Concepts, Skills, & Problem Solving 9 (Page 87)
Concepts, Skills, & Problem Solving 10 (Page 87)
Concepts, Skills, & Problem Solving 11 (Page 87)
Concepts, Skills, & Problem Solving 12 (Page 88)
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Concepts, Skills, & Problem Solving 16 (Page 88)
Concepts, Skills, & Problem Solving 17 (Page 88)
Concepts, Skills, & Problem Solving 18 (Page 88)
Concepts, Skills, & Problem Solving 19 (Page 88)
Concepts, Skills, & Problem Solving 20 (Page 88)
Concepts, Skills, & Problem Solving 21 (Page 88)