One of our more popular posts involves Arc Lengths & Sector Areas for circles. With that in mind, we thought we’d give you a challenging problem (well, really two problems) involving this topic. Give it a try and then scroll down for the answer.

The circle below has its center at *O* and triangle *AOB* is equilateral with sides that are each 6 inches.

1. What is the area, in square inches, of the shaded region?

A. 6π – 3√3

B. 9π – 3√3

C. 6π – 6√3

D. 6π – 9√3

E. 9π – 9√3

Continue reading ACT Math: A Challenging Arc Length & Sector Area Problem