# Angle Pairs

## Understand complementary angles as angles whose sum is 90 degrees and supplementary angles as angles whose sum is 180 degrees.

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.

## SLT 33 Use special angle relationships to solve for missing angles.

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## SLT 31 Define, recognize and describe special angle relationships.

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## Angle Pairs

Identify angle pairs as supplementary, complementary or neither
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