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# SSS Similarity

## Triangles are similar if their corresponding sides are proportional.

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.

## SSS Similarity

by CK-12 //basic

Use the SSS Similarity Theorem to determine if triangles are similar.

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## SSS Triangle Similarity

Prove and use the SSS criterion for triangle similarity.

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## PPP and PAP Similarity

This concept teaches students to decide whether or not two triangles are similar using SSS Similarity.

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• Video

## Congruent and Similar Triangles

by CK-12 //basic

Explains congruent and similar triangles. Shows how to determine if triangles are similar.

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• Video

## SSS Similarity Principles - Basic

by CK-12 //basic

This video provides the student with a walkthrough on SSS similarity.

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• Video

## SSS Similarity Examples - Basic

by CK-12 //basic

This video provides the student with a walkthrough of one or more examples from the concept "SSS Similarity".

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• Video

## SSS Similarity Principles

This video gives more detail about the mathematical principles presented in SSS Similarity.

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• Video

## SSS Similarity Examples

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

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• Video

## Similar Triangles Using Side-Side-Side and Side-Angle-Side

by CK-12 //basic

Explains how to determine if two triangles are similar using SSS and SAS.

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• Interactive Exercise

## Are The Two Triangles Similar (part 2)?

Checks your understanding of proportional figures.

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• Interactive Exercise

## True or False--Are the Triangles Similar by SSS?

Checks your understanding of similar triangles.

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• Interactive Exercise

## Which Similarity Theorem (part 2)?

Checks your understanding of similar triangles.

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• Interactive Exercise

## Which Type of Similarity (part 2)?

Checks your understanding of similar triangles.

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• Practice
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## SSS Similarity Practice

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• Interactive Exercise

## How are Triangles Similar by AA?

Checks your understanding of AA Triangle Similarity.

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• Interactive Exercise

## Triangle AA Similarity True or False

Checks your understanding of AA Triangle Similarity.

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• Interactive Exercise

## Triangle AA Similarity and Proportionality True or False

Checks your understanding of AA Triangle Similarity.

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• Interactive Exercise

## Given Some Information About Two Triangles, Are They Similar

Checks your understanding of AA Triangle Similarity.

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• Interactive Exercise

## Given Some Information About Two Triangles, Are They Similar (part 2)

Checks your understanding of AA Triangle Similarity.

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• Interactive Exercise

## Given Two Triangles, Are They Similar?

Checks your understanding of similar triangles.

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• Interactive Exercise

## Are The Two Triangles Similar (part 2)?

Checks your understanding of proportional figures.

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• Interactive Exercise

## Similarity by AA, SSS or SAS?

Checks your understanding of how triangles can be similar.

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• Interactive Exercise

## Similarity Test True or False

Checks your understanding of the Similarity Test.

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• Interactive Exercise

## True or False--Are the Triangles Similar by SSS?

Checks your understanding of similar triangles.

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• Interactive Exercise

## Solve--What is the Value of x?

Checks your understanding of similar triangles.

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• Interactive Exercise

## Are the Triangles Similar by SSS?

Checks your understanding of similar triangles.

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• Interactive Exercise

## Given Proportional Triangles, Solve for x

Checks your understanding of proportional triangles.

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• Interactive Exercise

## Which Similarity Theorem?

Checks your understanding of similar triangles.

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• Interactive Exercise

## Which Type of Similarity?

Checks your understanding of similar triangles.

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• Interactive Exercise

## Which Similarity Theorem (part 2)?

Checks your understanding of similar triangles.

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• Interactive Exercise

## Which Type of Similarity (part 2)?

Checks your understanding of similar triangles.

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• Interactive Exercise

## Are The Triangles Similar by SAS?

Checks your understanding of similar triangles.

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• Interactive Exercise

## Given SSS Similar Triangles, What is x?

Checks your understanding of similar triangles.

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• Critical Thinking

## SSS Similarity Discussion Questions

A list of student-submitted discussion questions for SSS Similarity.

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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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To organize ideas, increase comprehension, synthesize learning, demonstrate understanding of key concepts, and reinforce vocabulary using a Quickwrite.

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• Real World Application

## AAA Similarity

How do you measure the height of the great pyramid?

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• Real World Application

## Crazy Quilt

Find out how similar triangles are used in quilting.

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• Study Guide

## Polygon Similarity Study Guide

This study guide looks at similar polygons, scale factor (ratio), and triangle similarity.

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## Construct a Triangle with 3 Known Sides

How to construct a triangle with 3 known sides using just a compass and a straightedge.

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• Flashcards

## SSS Similarity Flashcards

by CK-12 //basic

These flashcards help you study important terms and vocabulary from SSS Similarity.

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