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# Angles and Measurement

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.
• Interactive Exercise

## Angle Addition

by CK-12 //at grade

One angle is a scalar multiple of the other. Use the given information to solve for the unknown angle measure.

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• Interactive Exercise

## Angles and Algebra

by CK-12 //at grade

A pair of angles are displayed. The angle measures are algebraic expressions.

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