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## Angle measure in a circle where the arc length equals the radius.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
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## Angle Measures - Overview

by CK-12 //basic
Overview
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## Angle Measures - Example 1

by CK-12 //basic
Determine the quadrant in which each angle lies
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## Angle Measures - Example 2

by CK-12 //basic
Sketch the angle in standard position
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## Angle Measures - Example 3

by CK-12 //basic
Find one positive and one negative coterminal angle
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## Angle Measures - Example 4

by CK-12 //basic
Find the complement and supplement of each angle
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