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Plz give relevant answer!!! |
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Answer» ratio = 4:7:9 sides are 4x,7x,9x perimeter = 200 4x+7x+9x = 200 20x = 200 x = 10Step-by-step explanation: sides are 40,70,90 ∆ = area of triangle ∆ = √(s)(s-a)(s-b)(s-c) where s = p/2 = 200/2 = 100 ∆ = √(100)(100-40)(100-70)(100-90) = √(100)(60)(30)(10) = 1341.6 |
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