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# HL 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

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

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• Video

## HL Triangle Congruence Principles

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

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• Video

## HL Triangle Congruence Examples

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

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• Interactive Exercise

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

Checks your understanding of the congruence theorems.

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• Interactive Exercise

## A Minimal Set of Conditions for Triangle Congruence

Checks your understanding of triangle congruence.

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• Critical Thinking

## HL Triangle Congruence Discussion Questions

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

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## HL Triangle Congruence Pre Read

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

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

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## HL Congruence Theorem KWL Chart

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

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• Real World Application

## HL Triangle Congruence

Demonstrate the HL Congruence Theorem using real world triangles.

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• Study Guide