Question

Please answer! I am struggling with this question! Please show ALL work! <3 (the answer choices are provided on a separate image)

Answer 1

The radius is 18 inches

Explanation:

The circumference of a circle is given by

C = 2 * pi *r

36 pi = 2 * pi *r

Divide each side by pi

36 = 2r

Divide each side by 2

18 =r

Answer 2

The answer is option C

Explanation:

Circumference of a circle = 2πr

where

r is the radius of the circle

From the question

Circumference = 36π inches

To find the radius substitute the value of the circumference into the above formula and solve for the radius

That's

`36\pi = 2\pi r`

Divide both sides by 2π

We have

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

We have the final answer as

r = 18 inches

Hope this helps you