Question

Find the area of a sector of a circle if the central angle measures 45° and the radius measures 12 inches. Leave your answer in terms of PI.

Answer 1

A = 1/2 r^2 θ, right?
so plug in your numbers.

Answer 2

As = 45/360 * pi*r^2 = 45/360 * pi*144 = 18pi in.^2.= Sector area.

Answer 3

56.52