Question

8.

What is the area of a circle whose diameter is 10?
A.10 pi
B.20 pi
C.25 pi
D. 100 pi

Answer 1

C

Explanation:

The formula is pi(r＾2)

r=radius

=10/2

Answer 2

25 pi

Explanation:

area of circle = pi (r)^2

radius = 10/2 = 5

5×5 = 25

25 pi