Question

If you know the radius, r, of a circle, what do you multiply r by to get the circle's CIRCUMFERENCE?

A) 2
B) π
C) 2π
D) 3π
E) 4π

Answer 1

C

Explanation:

Answer 2

When you have the radius of a circle, you find the circumference by multiplying the radius by 2PI.

The answer is C.