Question

The figure below shows the top view of a circular room with a circular stage. The diameter of the stage is 24 feet. The shaded portion represents the seating for the audience around the stage.

Answer 1

the shaded area is the outer ring....to find area of a ring you take area of big circle minus area of inner circle (stage)
--> pi(55^2) - pi(12^2)

then because 60 degrees is left out, this represents 1/6 of the ring
multiply above answer by 5/6

Answer 2

thanks!