Question

What is the exact circumference of the circle?

Show work

2π cm
4π cm
8π cm
16π cm

Answer 1

C=2πr

25.13 cm is the conference

Answer 2

8π cm

Explanation:

The diameter is 8 cm

We know the circumference is pi times diameter

C = pi * d

C = pi *8

C = 8pi cm

We leave it in terms of pi since we want the exact value.