Question

The circumference of a circle is 11π (11 pi) inches.

What is the area, in square inches, of the circle. Express your answer in terms of pi.

Answer 1

C=2 x pi x r

11pi=2pi x r

11pi/2pi=2pi/2pi x r

r=11/2

A= pi x r^2

A= pi x (11/2)^2

A=121/4pi inches^2

Explanation: