Central Angle Theorem with Circles

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.

A ____ angle is an angle whose vertex is a the center of a circle.

• supplementary

• complimentary

• central

• obtuse

Which of the following would be a major arc in the diagram?

• BC

• BCD

• CD

• AB

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.

Find the measure of arc AB.

• 17

• 34

• 68

• 146

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

• 150°

• 100°

• 210°

• 105°

• A
• B
• C
• D

• F
• G
• H
• J

• a
• b
• c
• d

Solve for x. 

• 5

• 20

• 40

• 85