Five different ways to find the area of a triangle.

How do you find the area of a triangle? The most common formula used to find the area is ½ base x height. However there are other methods you can use based on the information given. Check out the chart below for more methods to find the area of a triangle.

What you know…..	Method to use
Base and altitude of triangle	1/2 Base times Height   Video
Altitude of triangle missing	Heron’s formula Video
Two sides and included angle	Side angle Side SAS Video
Triangle Equilateral	Equilateral Triangle Area Video
X and Y coordinates of the vertices	Box Method Video

 

 

For more information and practice problems please see

Finding the area of a triangle

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