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The perimeter of a triangle is 36 cm and the sides are in the ratio 2 : 5 : 5 ,thenfind the area of the triangle . |
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Answer» Answer: Let sides are a, b and c, a = 3x, b = 4x, c = 5x Perimeter = a + b + c => 36 = 3x + 4x + 5x a = 9 CM, b = 12 cm and c = 15 cm Step-by-step explanation: Area =√s(s-a)(s-b)(s-c) = √18(18-9)(18-12)(18-15) =√18×9×6×3 =54cm2
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