Question

Mark wants to calculate the circumference of a circle with a radius of 7 centimeter. Which expression represents the circumference of the circle?

2 x 3.5 x π
2 x 14 x π
72 x π
14 x π

Answer 1

14 x π

Explanation:

The circumference of a circle is 2πr

Here, r is 7.

2 x 7 x π

=> 14π