Question

What's the circumference of a

circle with a radius of 5 inches?
Use 3.14 for n.
C = [?] inches

Answer 1

C = 31.4 inches

Explanation:

To find the circumference of a circle, the formula is d(pi), or 2r(pi)

We are given the radius, so let's just plug in the number:

2(5)(pi)

So our circumference would be 10pi

We have to get an approximation here, so we would do 10(3.14)

That would be 31.4 inches

I hope this helps, let me know if you have any questions.