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# HL Triangle Congruence

## Hypotenuse-leg pairs show right triangle congruence.

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.

## HL Triangle Congruence

by CK-12 //at grade

This concept introduces to the HL Triangle Congruence shortcut in order to prove that two right triangles are congruent.

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• PLIX

## HL Triangle Congruence

by CK-12 //at grade

HL Triangle Congruence Interactive

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• Video

## HL Triangle Congruence Principles

by CK-12 //at grade

This video gives more detail about the mathematical principles presented in HL Triangle Congruence.

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• Video

## HL Triangle Congruence Examples

by CK-12 //at grade

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

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• Practice
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## HL Triangle Congruence Practice

by CK-12 //at grade
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• Interactive Exercise

## Which Can't Be Used to Prove Congruence?

by CK-12 //at grade

Checks your understanding of the congruence theorems.

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• Interactive Exercise

## A Minimal Set of Conditions for Triangle Congruence

by CK-12 //at grade

Checks your understanding of triangle congruence.

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• Critical Thinking

## HL Triangle Congruence Discussion Questions

by CK-12 //at grade

A list of student-submitted discussion questions for HL Triangle Congruence.

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## HL Triangle Congruence 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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## HL Triangle Congruence Post Read

by CK-12 //at grade

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

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• Pre and Post Read

## HL Congruence Theorem KWL Chart

by CK-12 //at grade

With this KWL Chart, reflect on your prior knowledge of a concept, come up with questions you’re curious about, and come up with answers from the reading.

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• Real World Application

## Final Drafts

by CK-12 //at grade

Computer programs that incorporate geometry theorems can help you draft a design in less time.

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• Real World Application

## HL Triangle Congruence

by CK-12 //at grade

Demonstrate the HL Congruence Theorem using real world 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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