Arc Length, Radius and Central Angles

If m stands for the measure of the central angle that intercepts the arc, then this is the formula for finding what?

• arc length

• area of a sector

• area of a segment

• arc measure

FIND THE ARC LENGTH OF THE BOLDED ARC

• A

• B

• C

• D

FIND THE ARC LENGTH OF THE BOLDED ARC

• A

• B

• C

• D

A CENTRAL ANGLE in a circle is an angle that has a vertex at the ______ of the circle.

• edge

• exterior

• interior

• center

When she is outdoors, Tasha, the dog, is tied to a stake in the center of a circular area of radius 24 feet. The angle between her dog house and her favorite hydrant is 165 degrees.  What is the length of the arc from her dog house to the hydrant, following minor arc DG, to the nearest foot.

• 40

• 35

• 55

• 69

Find the arc length.
Leave your answer in terms of π.

• 7/4π

• 7/2π

• 1/8π

• 45π

Find the arc length.  Leave your answer in terms of π.

• 7/4π

• 7/2π

• 1/8π

• 45π

What is the arc length of minor arc AB?

• 5.23

• 103

• 33.33

• 50

Find the arc length of the bolded arc. Give your answer in terms of π.

• (65/12)π cm

• 17.02 cm

• (845/24)π cm

• 26π cm

Find the arc length.  Leave your answer in terms of π.

• 7/4π

• 7/2π

• 1/8π

• 45π