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1 vote
Find the exact area of a circle having the given circumference.

3pi

A =

2.25
3
9

User Mehmetozer
by
8.3k points

2 Answers

3 votes

This answer is correct, I double checked it and got it right on the assignment in OW. :)

User Dmitry Kurmanov
by
8.0k points
4 votes

Answer:

A = 2.25π

Explanation:

The formula of an area of a circle:


A=\pi r^2

r - radius

The formula of a circumference of a circle:


C=2\pi r

We have:


C=3\pi

Substitute:


2\pi r=3\pi divide both sides by 2π


r=1.5

Substitute:


A=\pi(1.5)^2=2.25\pi

User Molo
by
8.0k points

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