Question

What is the area of a circle with the radius of 10, then rounding the answer to the nearest tenth?

Answer 1

Given a circle with a radius = r = 10 in

The area of the circle is given by the following formula:

`A=\pi\cdot r^2`

Substitute with r= 10

so, the area will be:

`A=\pi\cdot10^2=(22)/(7)\cdot10^2=(22)/(7)\cdot100=314.2857`

Rounding the answer to the nearest tenth:

So, the answer will be area = 314.3 square inches