Circumference And Arc Length

An arc on a circle measures 125°. The measure of the central angle, in radians, is within which range?

Arc CD is 1/4 of the circumference of a circle. What is the radian measure of the central angle?

An arc on a circle measures 85°. The measure of the central angle, in radians, is within which range?

Minor arc KL measures 135°.Which is the radian measure of central angle KOL?

Consider circle T with radius 24 in. and θ = 5 pi/6 radians. What is the length of minor arc SV?

In circle M, diameters JL and HK each measure 16 centimeters. What is the approximate length of minor arc JH? Round to the nearest tenth of a centimeter.

Arc AB is 1/6 of the circumference of a circle. What is the radian measure of the central angle?

Circle P has a circumference of approximately 75 inches. What is the approximate length of the radius, r? Use 3.14 for pi. Round to the nearest inch.

In each circle below, a 50° angle with a vertex at the center of the circle is drawn. How are minor arc lengths CD and EF related?

Circle O has a circumference of approximately 250pi ft. What is the approximate length of the diameter, d?