Question

Mary and Jane have rectangular pools that are similar in shape. Mary’s pool dimensions are 2.1 times the corresponding dimensions of Jane’s pool. Which statement is true?

a. The area of Mary’s pool is 4.41 times the area of Jane’s pool.
b. The area of Mary’s pool is 4.2 times the area of Jane’s pool.
c. The perimeter of Mary’s pool is 4.41 times the perimeter of Jane’s pool.
d. The perimeter of Mary’s pool is 4.2 times the perimeter of Jane’s pool.

Answer 1

A

Explanation:

Let's assume the first pool to have dimensions 3.0 by 2.0

The second pool being 2.1 times the first will have dimensions 6.3 * 4.2

The area of the first pool is 6.0 and that of the second is 26.46

making the area of the second pool 4.41 times that of the first.