Question

The circumference of a circle is 20m. What is the area, in square meters?

Answer 1

c = 62.83185

a = 314.15927 m²

Explanation:

Hey There!

So first thing that we want to do is find the formula for the circumference

`C=2\pi r`

where r = radius

we are given the diameter which we can easily convert to radius by dividing by 2

20/2=10

so the radius is 10

now we plug in

`C=2\pi 10\\C=62.83185`

So the circumference is equal to 62.83185 m ²

Now to find the area we use the formula

`A = \pi r^2`
`10^2=100\\100\pi =314.15927`

so we can conclude that the area of the circle is 314.15927