Question

What is the area of a circle with a diameter of 8?
A. 4
B. 8
C. 16
D. 64

Answer 1

Area of a circle= pi(r)^2. Radius is half of a diameter. so d=(1/2)(8). A=pi(4)^2=16pi

Answer 2

Thanks.

Answer 3

oops, one correction. I meant to write: r=(1/2)(d)=(1/2)(8)

Answer 4

Oh, okay. :)