Question

What is the radius of a circle with circumference 5cm

Answer 1

0.796 cm

Explanation:

The equation for the circumference of a circle is 2πr where r is the radius. So to find r we need to rearrange the equation:

C = 2πr

`(C)/(2\pi )` = r

So r is equal to:

`(5)/(2\pi )` = 0.7957747155 and we can round it to 0.796 cm

Answer 2

i believe the answer is 2.5 cm