Skip to content
#
Question:

The area of one circle is four times as large as a smaller circle with a radius of 3 inches. The radius of the larger circle is

A
6 inches.

Explaination

The area of the circle with a radius of 3 is πr^{2}= π× r^{2}= 9π. The area of the larger circle is 4 × 9π = 36π. Therefore, r^{2}= 36, so r = 36 = 6. The radius of the larger circle is 6.