Circumference and Arc Length

Question 1

Circle O has a circumference of approximately 44 in.

Revolt · Accepted Answer

14 in.

Question 2

In the diagram below, Θ is measured in radians. Which equation represents the relationship between the radius, r, and arc length, s?

Revolt · Accepted Answer

s = Θ · r

Question 3

Major arc CBD measures 300°.

Revolt · Accepted Answer

radians

Question 4

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

Revolt · Accepted Answer

radians

Question 5

Circle O has a circumference of approximately 250π ft.

Revolt · Accepted Answer

250 ft

Question 6

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

Revolt · Accepted Answer

radians

Question 7

Two similar circles are shown. The circumference of the larger circle, with radius OB, is 3 times the circumference of the smaller circle, with radius OA.

Revolt · Accepted Answer

6πx units

Question 8

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

Revolt · Accepted Answer

StartFraction pi Over 3 EndFraction

Question 9

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

Revolt · Accepted Answer

3.5 cm

Question 10

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

Revolt · Accepted Answer

20π in.

Circumference and Arc Length Answers

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