Question

The two square pyramids are similar. The side length of

the smaller pyramid is 3/4 the side length of the larger
pyramid.
20 m
15 m
Which fraction represents the ratio of the base area of
the smaller pyramid to the base area of the larger
pyramid?
9/16
3/4
4/3
16/9

Answer 1

9/16

Explanation:

9/16. The ratio of areas of two similar squares is the square of the ratios of their similar side lengths. Since the ratio of the smaller side length to the larger side length is 3/4, the ratio of areas of two similar squares is: (3/4)² = 3²/4² = 9/16.