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# Complementary Angles

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 //at grade

This concept introduces students to complementary angles.

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• PLIX

## Complementary Angles: Corner Kick

by CK-12 //at grade

Complementary Angles Interactive

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• PLIX

## Complementary Angles

by CK-12 //at grade

Complementary Angles Interactive

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• Video

## Complementary Angles Principles

by CK-12 //at grade

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

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• Video

## Complementary Angles Examples

by CK-12 //at grade

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

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## Complementary Angles Quiz

by CK-12 //at grade

Ten problem quiz, short answers. Students need to solve for missing complementary angles, both with simple arithmetic and algebraically. One problem requires that students identify a complementary angle and prove that it is complementary to the original angle.

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• Interactive Exercise

## Supplementary Angles--Word Problem

by CK-12 //at grade

Solve for the unknown angle. You are only given information in writing.

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• Practice
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## Complementary Angles Practice

by CK-12 //at grade
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• Interactive Exercise

## Supplementary Angles

by CK-12 //at grade

Given a set of adjacent, supplementary, angles find the measure of the unknown measure.

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• Interactive Exercise

## Vertical and Supplementary Angle Facts

by CK-12 //at grade

Displays several statements about vertical and supplementary angles. Decide whether each is true or false.

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• Interactive Exercise

## Adjacent Supplementary Angles

by CK-12 //at grade

Displays a pair of adjacent, supplementary angles. Find the measure of the unknown angle.

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• Interactive Exercise

## Algebra and Adjacent Supplementary Angles

by CK-12 //at grade

Two supplementary angles are displayed. Use algebra to find the value of x.

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• Interactive Exercise

## Supplementary Angles--Word Problem

by CK-12 //at grade

Solve for the unknown angle. You are only given information in writing.

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• Interactive Exercise

## Unknown Complementary Angle Word Problem

by CK-12 //at grade

Presents a problem involving two complementary angles. Can you solve for the unknown angle?

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• Interactive Exercise

## Unknown Complementary Angle Word Problem with Algebra

by CK-12 //at grade

Presents a problem involving two complementary angles. Can you solve for the unknown angle?

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• Interactive Exercise

## Unknown Greater Complementary Angle Word Problem

by CK-12 //at grade

Presents a problem involving two complementary angles. Can you solve for the unknown angle?

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• Interactive Exercise

## Linear Pair Facts

by CK-12 //at grade

Displays several statements about linear pairs. Decide whether each is true or false.

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• Interactive Exercise

## Form a Linear Pair

by CK-12 //at grade

Displays either a linear pair or not a linear pair. Decide whether the statement is true or false.

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• Interactive Exercise

## Vertical Angle

by CK-12 //at grade

Displays two intersecting lines. What is the value of x?

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• Interactive Exercise

## Algebra and Vertical Angles

by CK-12 //at grade

Displays two intersecting lines. The measures of two angles are given as algebraic expressions. Determine the value of x.

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• Critical Thinking

## Complementary Angles Discussion Questions

by CK-12 //at grade

A list of student-submitted discussion questions for Complementary Angles.

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## Complementary Angles Pre Read

by CK-12 //at grade

To activate prior knowledge, make personal connections, reflect on key concepts, encourage critical thinking, and assess student knowledge on the topic prior to reading using a Quickwrite.

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## Complementary Angles Post Read

by CK-12 //at grade

To stress understanding of a concept by summarizing the main idea and applying that understanding to create visual aids and generate questions and comments using a Concept Matrix.

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• Pre and Post Read

## Complementary Angles PrePostRead

by CK-12 //at grade

To activate prior knowledge, to generate questions about a given topic, and to organize knowledge using a KWL Chart.

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• Real World Application

## Complementary Angles

by CK-12 //at grade

Making a table using complementary angles.

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• Study Guide

## Angles Study Guide

by CK-12 //at grade

This study guide reviews angle nomenclature, how to measure angles, different types of angles, congruent angles, and angle pairs.

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