Question

Find the area of the circle
a-21.98 m2
b-153.86 m2
c-14 m2
d-483.13 m2

Answer 1

The answer is a because of 2cm being the radius

Answer 2

B)
`153.86 meters^(2)`

Explanation:

The formula for the area of a circle is :
`\pi *radius^(2)`

The radius of a circle is the length from one side to the centre.

To work this out you would have to multiply pi by the radius of 7 squared, this gives you 153.94, however if using pi as in 3.14, then the answer is 153.86.

1) Multiply pi by 7 squared.

`\pi *7^(2) =153.86 meters^(2)`