If a circles has an arc that is 72 degrees, and its length is 9 units, what is the circumference?

Question

This is for a nova net class, so if it would be answered fast, thatd be greatly appreciated.

Answer 1

Given arc length is 9.

Circle has 360 degrees.

Given sector angle is 72.

So the 72 degree angled sectors are 5 in the circle.

Arc length = 9

Circumference is 9*5 = 45units.