89.0k views
2 votes
The area of a circle is 49π m². What is the circumference, in meters? Express your answer in terms of piπ.

1 Answer

3 votes

Answer:

The formula for the area A of a circle is given by A = πr², where r is the radius. In this case, you have A = 49π square meters.

To find the r, you can rearrange the formula as follows:

r² = A/π

r² = 49π/π

r² = 49

r = √49

r = 7

Now that you know the radius is 7 meters, you can find the circumference C using the formula C = 2\π . r

C = 2\π . 7

C = 14\π

So, the circumference is 14/π meters.

User Donjuedo
by
7.8k points