If the diameter of a circle is 12 inches, what is the area, circumference and the radius?

1 Answer
May 28, 2015

R.=6, C.38 and A.113.

First you need to find the radius, the key term to find the radius is diameter=2radius; therefore the radius r is 122=6 inches.

To find the area of a circle, you need to use the formula A=πr2; therefore the area A is π62113 square inches.

To find the circumference of a circle, you will use the formula C=2πr; therefore the circumference C is 2π638 inches.