# Find the Height of a Triangle of Circles

This video explains how to find the height to of a triangle of circles with a know radius.

# Ex: Find the Perimeter of an Equilateral Triangle Given the Area without Trigonometry

This video explains how to determine the perimeter of an equilateral triangle given the area with out using trigonometry.

# Example: Determine the Perimeter of an Equilateral Triangle Given the Height

```This video provides an example of how to use a 30-60-90 triangle to determine the perimeter or an equilateral triangle.
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# Proof: The Equilateral Triangle Theorem

This video provides a two column proof of the equilateral triangle theorem.

# Examples: Using the Properties of Equilateral Triangles to Determine Values

This video will show example problems of how to use the properties of equilateral triangles to solve for unknown values.

# How To Construct An Equilateral Triangle

This video will show how to construct an equilateral triangle with a compass and straight edge.