# Complementary Angles

## Two angles that add to 90 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.

## Complementary Angles

by CK-12 //basic
Solve complementary angle problems.
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## Complementary Angles

This concept introduces students to complementary angles.
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## Complementary Angles

This concept introduces students to complementary angles.
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## Complementary Angles Student Textbook

This concept introduces students to complementary angles.
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## Complementary Angles

Solve complementary angle problems.
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## Complementary Angles

This concept introduces students to complementary angles.
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## Complementary Angles 2

by Christopher King //basic
Solve complementary angle problems.
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## Complementary Angles.

by Scott Lamie //basic
Solve complementary angle problems.
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• PLIX

## Complementary Angles: Corner Kick

Complementary Angles Interactive
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• PLIX

## Complementary Angles

Complementary Angles Interactive
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• Video

## Complementary Angles Principles - Basic

by CK-12 //basic
This video provides the student with a walkthrough on identifying complementary angles.
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• Video

## Complementary Angles Examples - Basic

by CK-12 //basic
This video provides the student with a walkthrough of one or more examples from the concept "Complementary Angles".
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• Video

## Complementary Angles Principles

This video gives more detail about the mathematical principles presented in Complementary Angles.
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• Video

## Complementary Angles Examples

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

## Angle Basics

by CK-12 //basic
Learn all the basics you'll need to know about angles. James Sousa introduces angle vocabulary and measurement.
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• Video

## Complementary, Supplementary, and Vertical Angles

by CK-12 //basic
Defines types of angles and goes over some practice problems.
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• Video

## Complementary Angles - Overview

by CK-12 //basic
Overview
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• Video

## Complementary Angles - Example 1

by CK-12 //basic
Find the measure of an angle using given information
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• Video

## Complementary Angles - Example 2

by CK-12 //basic
Find the measure of an angle using algebra
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• Critical Thinking

## Complementary Angles Discussion Questions

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

## Complementary Angles

Making a table using complementary angles.
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• Study Guide