# Equilateral Triangle

See how to find the height/area of an equilateral triangle.

3 examples and their solutions.

## Equilateral Triangle

### Definition

whose sides are all congruent.

So its interior angles are all congruent: 60º.

## Equilateral Triangle: Height

### Formula

h = √32⋅a

### Example

h = √32⋅8

= 4√3

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### Example

## Equilateral Triangle: Area

### Formula

A = √34⋅a

^{2}

### Example

Area?

Solution A = √34⋅6

^{2}

= √34⋅36

= 9√3

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