# A triangle has sides with lengths: 16, 11, and 9. How do you find the area of the triangle using Heron's formula?

##### 1 Answer

Jan 9, 2016

#### Explanation:

Using Heron's formula is a two step process.

step 1 : find half of the triangles perimeter (s)

label the lengths of the 3 sides a , b and c.

In this case a = 16 , b = 11 and c = 9.

step 2 : Calculate the Area (A) using :