Circumference and Arc Length Answers

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

Minor arc KL measures 135°.

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?

In circle M, diameters JL and HK each measure 16 centimeters.

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

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

Consider circle T with radius 24 in. and θ = radians.

Circle O has a circumference of approximately 44 in.

Circle Q has a circumference of approximately 50 centimeters.

Two circles are shown in the diagram.Since all circles are similar, a proportion can be set up using the circumference and diameter of each circle. Substitute the values d1 = 1, C1 = π, and d2 = 2r into the proportion.Which shows how to correctly solve for C2, the circumference of any circle with radius r?