Picture is not drawn to scale. The dimensions of rectangle B are twice the dimensions of rectangle A. The area of rectangle B is 72 cm2. What is the area of rectangle A?

Answer 1

Let the dimensions of rectangle A be x and y, and the dimensions of rectangle B be 2x and 2y.

The area of rectangle A is xy and the area of rectangle B is 4xy.

Given that the area of rectangle B is 72 cm^2, we have:
4xy = 72

Dividing both sides by 4:
xy = 18

Therefore, the area of rectangle A is 18 cm^2.