Naming Arcs and Angles in a Circle

Correctly name a minor arc.

• arc AEC

• arc ADE

• arc AB

• arc AC

Correctly name a major arc.

• arc ACE

• arc ACB

• arc EB

• ∠AOC

Which of the following are central angles. Select ALL that apply.

• ∠AOB

• ∠BOC

• ∠AOC

• arc BC

• arc AC

What is the measure of arc AB?

• 140°

• 142°

• 180°

• 38°

What is the measure of arc WYZ?

• 231°

• 255°

• 168°

• 200°

What is the measure of ∠UTW

• A (130°)

• B (124°)

• C (60°)

• D (141°)

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

• 7/4π
• 7/2π
• 1/8π
• 45π

Find the length of the bold arc.
Leave pi in your answer.

• 5040πcm 
• 2πcm 
• 44.0cm
• 14π cm