# How do you find the area of a 30, 60, 90, triangle?

##### 1 Answer

Jun 16, 2015

1)

2)

3)

#### Explanation:

You know a 30-60-90 triangle is half an equilateral triangle, so the base is half of the hypotenuse L

You can use now Pythagoras theorem and calculate the height:

So we can determine the area only knowing one of the edges:

1) If we know

2) If we know

3) If we know