SOLUTION: a triangle has sides, in cm, of 3, 5 and 6. Use a=3, b=5 and c=6 to work out the area of this triangle.

Algebra ->  Triangles -> SOLUTION: a triangle has sides, in cm, of 3, 5 and 6. Use a=3, b=5 and c=6 to work out the area of this triangle.      Log On


   

Question 437273: a triangle has sides, in cm, of 3, 5 and 6. Use a=3, b=5 and c=6 to work out the area of this triangle.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
a triangle has sides, in cm, of 3, 5 and 6. Use a=3, b=5 and c=6 to work out the area of this triangle.
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Use Heron's Law:
Area+=+sqrt%28s%28s-a%29%28s-b%29s-c%29%29 s = perimeter/2 = 7
Area+=+sqrt%287%2A1%2A2%2A4%29+=+sqrt%2856%29
Area =~ 7.483 sq cm