# What is area of equilateral triangle?

##### 1 Answer

Jun 15, 2015

If the sides of an equilateral triangle are all of length

#### Explanation:

Consider an equilateral triangle with sides of length

If you bisect it to make two right angled triangles, then those triangles will have hypotenuse of length

The two right angled triangles can be rearranged (turning one over) into a rectangle with sides

The area of the rectangle, which is the same as the area of the original triangle is: