Question

Circle O has. Circumference of 36 pie cm . What is the length of the radius

Answer 1

radius = 18 cm

Explanation:

The circumference (C) of a circle is calculated using the formula

C = 2πr ← r is the radius

here C = 36π , hence

2πr = 36π ( divide both sides by 2π )

r =
`(36\pi )/(2\pi )` = 18

Answer 2

18

Explanation:

r=a/2

r=36/3

r=18