What is the radius of a circle if the circumference is 51cm?

Answer 1

To find the radius of a circle given the circumference, you can use the formula ( C = 2\pi r ), where ( C ) is the circumference and ( r ) is the radius. Rearranging the formula to solve for the radius gives ( r = \frac{C}{2\pi} ). Plugging in the given circumference of 51 cm, you get ( r = \frac{51}{2\pi} ), which is approximately 8.13 cm.