Question

The circumference of a circle is 7 m.

What is the area of the circle?

1. 3.5pi m^2
2. 12.25pi m^2
3. 14pi m^2
4. 49pi m^2

Answer 1

2. 12.25pi

Explanation:

circumference = diameter × pi

diameter = 7

area of circle = pi radius^2

radius = 3.5

3.5^2 = 12.25

answer = 12.25 pi