Question

find the area of triangle of side is 5m,7m,and 8m

Answer 1

first we find the half perimeter of triangle P = (5+7+8)/2 = 20/2 = 10cm
Now place the value of P in this Formula √{P(P-a) (P-b) (P-c) } = √{10(10-5)(10-7)(10-8)} = √{10*5*3*2} = √300 = 17.32

Answer 2

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