Question

Find the exact circumference of a circle with the given radius. 3¼ inches C = 6.25 in. 6.5 in. 23.25 in.

Answer 1

Hello!

To find the circumference of a circle you use the equation

$C = 2 \pi r$

C is circumference
r is radius

Put in the values we know

$C = 2 *\pi *3 \frac{1}{4}$

Multiply the 2 and the 3 1/4

$C = 6.5 \pi$

The answer is $C = 6.5 \pi$

Hope this helps!

Answer 2

Answer: 6.25π in

Explanation:

$\textnormal {Circumference =} 2\pi (3.25) = 6.5 \pi \textnormal{ in}$