Need help w/: What is square footage of triangle 60 x 112 x 96?

What is square footage of triangle 60 x 112 x 96?
There is a formula for the area of a triangle when given the 3 sides (a, b, c).

Let....... \(\displaystyle s = (1/2)(a + b + c)\)

Then ....\(\displaystyle \displaystyle A = \sqrt{s(s-a)(s-b)(s-c)}\)
 
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