Question

What is the radius of a circle whose circumference is 36π ? A. 36 B. 12 C. 18 D. 9

Answer 1

• The correct answer is C. 18 ✅

Explanation:

The formula for the circumference of a circle is given by (C = 2πr),

where (r) is the radius of the circle. In this case, the circumference is given as (36π), so you can set up the equation as:

➡ [2πr = 36π]

Dividing both sides by (2π), you get:

`= > \: \[r = (36π)/(2π) = 18\]`

So, the radius of the circle is 18.

Answer 2

C. 18

Explanation:

C = 2πr

2πr = 36π

πr = 18π

r = 18