SOLUTION: Find, to the nearest square yard, the area of a triangular plot of ground that measures 15 yards by 20 yards by 25 yards.

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Question 750039: Find, to the nearest square yard, the area of a triangular plot of ground that measures 15 yards by 20 yards by 25 yards.
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
We use Heron's formula
%0D%0AA=sqrt%28s%28s-a%29%28s-b%29%28s-c%29%29%0D%0A


where


%0D%0As=%28a%2Bb%2Bc%29%2F2%0D%0A
Now a=15, b=20, c=25



%0D%0As=%28a%2Bb%2Bc%29%2F2=%2815%2B20%2B25%29%2F2=30%0D%0A







:)