SOLUTION: what is the area of a scalene triangle with the side lengths as 5cm, 10cm and 7cm.

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Question 806645: what is the area of a scalene triangle with the side lengths as 5cm, 10cm and 7cm.
Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!

Calculate the semi-perimeter s = %28a%2Bb%2Bc%29%2F2 using a=5, b=10, c=7

then find the area by Heron's formula:

A = √s(s-a)(s-b)(s-c)

Edwin