Question

The circumference of a circle is 19π cm what is exact the area of the circle ?

Do not round. include correct units show all your work

Answer 1

`90.25\pi \: cm ^(2)`

Explanation:

C =

`2\pi \: r`

R=

`(19)/(\pi ) = 9.5\pi`

Now the area of the circle =

`\pi \: r ^(2)`

A =

`\pi * 9.5 ^(2)`

=

`90.25\pi \: cm ^(2)`

Hopefully this helps! :)