Major Arcs Minor Arcs Semicircles Central Angles

What is the relationship between a central angle and its arc?

• The angle is half of the arc.

• The arc is half of the angle.

• The arc is smaller than the angle.

• They are congruent.

Identify the major arcs of Circle O.  Select all that apply.

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Identify the semicircles of Circle O.  Select all that apply.

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Two minor arcs

Two central angles

Name a central angle. Select all that apply.

• Angle PSQ

• Angle QTR

• Angle RTS

• Angle PSR

Which arcs are semicircles?  Check all that apply.

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Which arcs are minor arcs?  Check all that apply.

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Find the arc measure for arc RQT

• 335˚

• 126˚

• 224˚

• 94˚

If the measure of angle MPL=63 degrees, what is 297 degrees?

• measure of arc JK

• measure of arc NJ

• measure of arc JL

• measure of arc KNM

• measure of arc MJL