Big Ideas Math: Modeling Real Life, Grade 8
BI
Big Ideas Math: Modeling Real Life, Grade 8 View details
7. Perimeters and Areas of Similar Figures
Continue to next subchapter

Exercise 2 Page 85

The ratio of the areas is the same as the ratio of the corresponding side lengths squared.

64/49

Practice makes perfect
We know that the base of Triangle P is 8 meters and the base of a similar Triangle Q is 7 meters. Let's start by drawing these triangles in a coordinate plane!

In the given similar figures, the lengths of two corresponding sides are 8 and 7. Therefore, we can say that the ratio between the corresponding side lengths is 8 7. The ratio of the areas is the same as the ratio of the corresponding side lengths squared.

Ratio of Corresponding Side Lengths 8/7
Ratio of Areas 8^2/7^2 ⇔ 64/49