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# Supplementary Angles

## Two angles that add to 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.

## Supplementary Angles

This concept introduces students to supplementary angles.
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## Supplementary Angles

This concept introduces students to supplementary angles.
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## Supplementary Angles Student Textbook

This concept introduces students to supplementary angles.
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## Supplementary Angles

This concept introduces students to supplementary angles.
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• PLIX

## Spiderweb Angles

Supplementary Angles Interactive
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• Video

## Supplementary Angles Examples

This video shows how to work step-by-step through one or more of the examples in Supplementary Angles.
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• Video

## Supplementary Angles Principles

This video gives more detail about the mathematical principles presented in Supplementary Angles.
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## Supplementary Angles Quiz

Ten problem quiz, short answers. Students need to identify supplementary angles and give justification proving that the angles are supplementary. Students need to solve for missing supplementary angles, both with simple arithmetic and algebraically.
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• Critical Thinking

## Supplementary Angles Discussion Questions

A list of student-submitted discussion questions for Supplementary Angles.
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• Real World Application

## Supplementary Angles

What if you were stranded at sea? Or on a desert island? How would you use angles to determine your position?
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• Study Guide