# How do you use Heron's formula to determine the area of a triangle with sides of that are 12, 16, and 19 units in length?

##### 2 Answers

Jul 16, 2018

#### Explanation:

The semi-perimeter

Now, using Hero's formula, the area

Jul 16, 2018

#### Explanation:

We have,

Let ,

#s-b=23.5-16=7.5#

#s-c=23.5-19=4.5#

So ,

#Delta=sqrt(23.5(11.5)(7.5)(4.5))~~95.5036# square units