50. In the circle shown below, central angle ∠AOB measures 45°, and are is π centimeters long. How many centimeters long is the circle’s radius?

Answer and Explanation

Your Answer is

Correct Answer is G

Explanation

The angle of the center of the circle is 360°, which contains 8 45°, so the circumference of the circle contains 8 π, and the value of the radius of the circle can be solved by the formula of the circumference of the circle. Choose G.