Question

What is the circumference of the circle if AB = 4 in?

Answer 1

Hello from MrBillDoesMath!

Answer:   8 * pi  (inches^2)

Discussion:

From Plane Geometry the circumference of a circle of radius "r" is

2 * pi * r

In this case, AB is a radius of the circle so the circumference is

2 * pi * 4  = 8 pi

Regards, MrB