Question

The diagram shows corresponding lengths in two similar figures. Find the ratio of the perimeters and the ratio of the areas.

A.
3:4 and 180:240
B.
3:4 and 9:16
C.
9:16 and 180:240
D.
15:20 and 180:240

Answer 1

15:20

divide each by 5

3:4

to find the ratio of the area's we square the ratio's of the sides

3^3 : 4^2

9:16

Choice B