Central Angles and Arcs

Which is true of a minor arc?

• It forms half a circle.
• It forms a whole circle.
• It measures greater than 180 degrees. 
• It measures less than 180 degrees.

Which is true of a major arc?

• Forms half a circle.
• Forms a whole circle.
• Measures greater than 180 degrees.
• Measures less than 180 degrees.

• x = 160
• x = 40
• x = 80
• x = 360

What is the measure of arc AYB

• 50
• 100
• 180
• 260

If the measure of arc ABC = 210°, what is the measure of ∠AOC?

• 150°
• 100°
• 210°
• 105°

What is the measure of arc WYZ?

• 231
• 255
• 168
• 200

Find the measure of the arc IK

What is the measure of arc JK?

• 55°
• 60°
• 120°
• 135°

What is the measure of arc AB?

Solve for the missing angle.

Mathematical Equivalence

ON