Arc Length Geometry

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

• 7/4π

• 7/2π

• 1/8π

• 45π

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 of the sector. Round your answer to the nearest tenth.

• 52.4 in

• 10.5 in

• 5.2 in

• 9.8 in

Find the arc length of the sector. Round your answer to the nearest tenth.

• 8.7 m

• 7.9 m

• 3.9 m

• 11.8 m

Find the arc length of the sector.

• A

• B

• C

• D

Calculate the length of the bold arc.

• 5040 cm

• 43 cm

• 44 cm

• 14 cm

Find the arc length of arc AB.

• 12.57 units

• 75.40 units

• 24 units

• 125.66 units

How do I find the LENGTH of an arc?

• Arc MEASURE divided by 360 then 2 times Pi times diameter.

• Arc MEASURE divided by 360 then 2 times Pi times radius.

• Arc MEASURE divided by 180 then 2 times Pi times radius.

• Arc MEASURE divided by 180 then 2 times Pi times diameter.

The radius of a circle is 9 inches. What is the length of a 135° arc? Round your answer to the nearest tenth.

• 113.1 inches

• 56.5 inches

• 28.3 inches

• 33.3 inches

Rob is trying to open a can. He wants to find the arc length the can opener needs to travel to open the can half way. The radius of the can is 1.5 inches.

• 10 inches

• 2 feet

• 4.71 inches

• 3.53 inches