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# Equilateral Triangles

## Properties of triangles with three equal sides.

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.

## Equilateral Triangles

by CK-12 //basic

Apply the properties of equilateral triangles.

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• Video

## Equilateral and Isosceles Example Problems

by CK-12 //basic

A video showing how to solve for the remaining angle/bases of an isosceles triangle, as well as solving the same problem using an equilateral triangle.

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• Video

## Equilateral Triangles Principles - Basic

by CK-12 //basic

This video provides the student with a walkthrough on equilateral triangles.

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• Video

## Equilateral Triangles Examples - Basic

by CK-12 //basic

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

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• Video

## Constructing an Equilateral Triangle

by CK-12 //basic

Shows how to construct an equilateral triangle with a compass and straight edge.

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• Video

## Proof: Equilateral Triangles Theorem

by CK-12 //basic

Provides a two column proof of the equilateral triangle theorem.

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• Video

## Examples: Using the Properties of Equilateral Triangles

by CK-12 //basic

Shows example problems of how to use the properties of equilateral triangles to solve for unknown values.

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## Interactive Triangles

by CK-12 //basic

This interactive allows you to explore the different kinds of triangle, all their side and angle combinations, and how they can be scaled to form similar triangles.

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• Flashcards

## Isosceles, Right, and Equilateral Triangles Flashcards

by CK-12 //basic

These flashcards help you study important terms and vocabulary from Isosceles Triangles and Equilateral Triangles.

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