Question

The radius of a circle is 1 mile. What is the circle's circumference?

Answer 1

Circumference = 2π

Explanation:

The formula for a circle's circumference is:

C = 2πr

Here is a quick breakdown:

C = circumference

r = radius

Since we are given that the radius is 1 mile, we can plug in r into the formula above:

C = 2π(1)

C = 2π