sides of a triangle is in the ratio 13:14:15 . the perimeter is 84 m . find the area of the triangle
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Let the sides be 13x ,14x and 15x
so, 13x +14x +15x = 84
⇒42x = 84
⇒x =2
Hence,sides will be 26 m, 28 m and 30 m
semi perimeter,s = 84/2 = 42
area = √[s(s-a)(s-b)(s-c)]
=√(42×16×14×12)
=√112896
= 336 m²
so, 13x +14x +15x = 84
⇒42x = 84
⇒x =2
Hence,sides will be 26 m, 28 m and 30 m
semi perimeter,s = 84/2 = 42
area = √[s(s-a)(s-b)(s-c)]
=√(42×16×14×12)
=√112896
= 336 m²
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