Central Angle Measures

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

• supplementary

• complimentary

• central

• obtuse

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

• BC

• BCD

• CD

• AB

Find the measure of the indicated angle.

What is the measure of arc AXB

• 50

• 100

• 180

• 260

What is the measure of ∠AOB?

• 40°

• 80°

• 160°

• 50°

Find the value of x. Enter your answer as a number only.

If the measure of a central angle is 80 degrees, what is the measure of the minor arc it intercepts?

Mathematical Equivalence

ON

What is the measure of \angle BOC?