A circle has a radius of 6 cm. What is its circumference?

1 Answer
Dec 26, 2016

37.699cm

Explanation:

The circumference of a circle can be obtained by using the equation below:

http://www.wikihow.com/Calculate-the-Circumference-of-a-Circlehttp://www.wikihow.com/Calculate-the-Circumference-of-a-Circle

where the mathematical constant, pi, has a value of approximately 3.14 and r represents the radius of the circle.

All we have to do is multiply the given radius by two and multiply that value by pi to determine C:

"Circumference" = 2xx6cm xx pi
"Circumference" = 12cmxxpi
"Circumference" = 37.699cm