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

Question

asked Jan 16, 2019 169k views

1 Answer

Roland Ewald · Answer 1 · 2019-01-20T02:24:20+0000

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