Question

Find the radius of a circle with:
Circumference of 24 pi cm

Answer 1

r ≈ 3.82

Explanation:

Using the formula:

C =
`2\pi r`

We rearrange to get r as the subject:

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

r = 24÷(2×
`\pi`)

r ≈ 3.82