To find out the circumference of a circle, you have to multiply the diameter of the circle with pi.(3.14)
First, to get the diameter of a circle you have to multiply the radius by 2.
[tex]10*2=20
[/tex]
The diameter is 20 centimeters.
Then, multiply the diameter by pi.(3.14)
[tex]20*3.14=62.8[/tex]
The circumference is 62.8 centimeters.
