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# SAS Triangle Congruence

## Two sets of corresponding sides and included angles prove congruent triangles.

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.
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## SAS Triangle Congruence

by CK-12 //at grade
This concept introduces students to the SAS Triangle Postulate and how to prove that two triangles are congruent given only information about two pairs of sides and included angles.
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• PLIX

## SAS Triangle Congruence

by CK-12 //at grade
SAS Triangle Congruence Interactive
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• PLIX

## Complete the Proof

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SAS Triangle Congruence Interactive
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• Video

## SAS Triangle Congruence Principles

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This video gives more detail about the mathematical principles presented in SAS Triangle Congruence.
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• Video

## SAS Triangle Congruence Examples

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This video shows how to work step-by-step through one or more of the examples in SAS Triangle Congruence.
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• Downloadable Quiz

## SAS Triangle Congruence Quiz

by CK-12 //at grade
Nine question quiz. Students must examine diagrams of triangles and the coordinates of triangles and determine if they are congruent using the SAS congruency theorem. Students must justify their reasoning. Students must also draw (on the coordinate plan) an example and non-example of triangles that can be proven congruent using the SAS theorem and then explain their reasoning.
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• Critical Thinking

## SAS Triangle Congruence Discussion Questions

by CK-12 //at grade
A list of student-submitted discussion questions for SAS Triangle Congruence.
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• Real World Application

## SSS Triangle Congruence

by CK-12 //at grade
Do a hands on activity to help conceptualize congruent triangles.
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• Study Guide

## Triangle Congruence Study Guide

by CK-12 //at grade
This study guide is an overview of triangle congruence: defining corresponding parts of congruent triangles, postulates and theorems for congruences (SSS, SAS, AAS, ASA), and postulates and theorems for congruences for special triangles.
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