question

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

answer

pi/2 to pi radians

question

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

answer

pi/2 radians

question

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

answer

0 to pi/2 radians

question

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

answer

3 pi/4 radians

question

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

answer

20 pi in.

question

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.

answer

3.5 cm

question

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

answer

pi/3

question

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.

answer

12 inches

question

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

answer

The arc lengths are proportional: CD = 6EF

question

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

answer

250 ft