Question

A circular spinner from a board game is divided into 8 equal sections. What is the measure of the inner angle (with the vertex at the spinner) of one of the sections?

Answer 1

Answer: Three of eight sectors do not move the token; this area is 35.9 in2.

To find the radius of the spinner: A = pi · r2

35.9 = (3/8) · pi · r2

35.9 = 1.1781 · r2

30.73 = r2

r = 5.5 in

Explanation: