SOLUTION: Find the area of a triangle with sides 5, 8, 10. No decimals. Exact answer with a radical but no trigonometric functions.

Algebra ->  Triangles -> SOLUTION: Find the area of a triangle with sides 5, 8, 10. No decimals. Exact answer with a radical but no trigonometric functions.       Log On


   

Question 546969: Find the area of a triangle with sides 5, 8, 10. No decimals. Exact answer with a radical but no trigonometric functions.

Answer by Alan3354(69443) About Me  (Show Source):
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Find the area of a triangle with sides 5, 8, 10. No decimals. Exact answer with a radical but no trigonometric functions.
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Use Heron's Law:
area+=+sqrt%28s%2A%28s-5%29%2A%28s-8%29%2A%28s-10%29%29 where s = 1/2 the perimeter = 23/2
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= sqrt%286279%29%2F4 sq units