Question

Find the ratio of the areas of figures I and II.

Answer 1

The first one is 2:3
the second one is 1:3

Answer 2

how did you get that

Answer 3

The first problem is a ratio of areas in two similar figures. Remember, of the side lengths have a ratio of a:b, then the ares will have a ratio of a²:b²

The side length of figure I is 3, and the side length of figure II is 5. If the lengths have a ratio of 3:5, what is the ratio of the areas?

Answer 4

9:25

Answer 5

Good!

For the second one, we can draw more triangles on the rectangle: