A circle has a radius of 2in. Find the length s of the arc intercepted by a central angle of π/2 radians.

Question

A circle has a radius of 2in. Find the length s of the arc intercepted by a central angle of π/2 radians.

(Do not round any intermediate computations, and round your answer to the nearest tenth.)

Answer 1

arc length = radius * central angle in radians

= 2 * 3.14159/2

= 3.14159 = 3.1