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# Exterior Angles Theorems

## Exterior angles equal the sum of the remote interiors.

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.

## Exterior Angles Theorems

by CK-12 //basic

Apply the Exterior Angles Theorems.

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• Video

## Exterior Angles Theorems Principles - Basic

by CK-12 //basic

This video provides the student with a walkthrough on exterior angle theorems.

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• Video

## Exterior Angles Theorems Examples - Basic

by CK-12 //basic

This video provides the student with a walkthrough of one or more examples from the concept "Exterior Angles Theorems".

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• Video

## Introduction to the Exterior Angles of a Triangle

by CK-12 //basic

Definitions and theorems involving the exterior angles of a triangle.

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• Video

## Proof that the Sum of the Exterior Angles of a Triangle is 360 Degrees

by CK-12 //basic

Provides a two column proof that the sum of the exterior angles of a triangle is 360 degrees.

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• Video

## Proof of the Exterior Angles Theorem

by CK-12 //basic

Provides a two column proof of the exterior angles theorem.

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• Flashcards

## Interior and Exterior Angles Flashcards

by CK-12 //basic

These flashcards help you study important terms and vocabulary from Exterior Angles Theorems.

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