Question

Circumference of a circle is 15 what is the radius

Answer 1

2.38732414...

Explanation:

the diameter of a circumference is your number divided by ∏. so it will be 4.77464829...

radius is half of the diameter and thats where you get your answer.

my work (15/∏)/2

Answer 2

r=
`(15 )/(2\pi )`

Explanation:

Circumference formula: 2πr

2πr=15

Divide 2π on both sides.

So since it won't be a integer you can leave it live that so your final answer will be:

r=
`(15 )/(2\pi )`