side of triangle is 13 , 14 , 15 then area – InterviewSolution

1.

side of triangle is 13 , 14 , 15 then area

Answer»

By Heron's formula, A = √(s*(s-a)(s-b)(s-c)) where s is half the perimeter.

s = (13+14+15)/2 = 21

s-a = 21-13 = 8

s-a = 7

s-c = 6

A = √(21*8*7*6) = √(7056) = 84

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