SOLUTION: hi, i was having some problem with a question, i would like to know a formula that can find the area of a scalene triangle if i only know its perimeter.please help me. thanks.

Question 91524: hi, i was having some problem with a question, i would like to know a formula that can find the area of a scalene triangle if i only know its perimeter.please help me.
thanks.
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Yes, there is one and it's known as Heron's (sometimes known as Hero's) formula and it looks like this.

Where:
A = area.
s = the semi-perimeter (half the perimeter) of the triangle.
a = the length of one side (it doesn't matter which side).
b = the length of the second side.
c = the length of the third side.
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