Question

Area of a triangle is 36√6 cm^2. Its sides are 4:5:7. Find perimeter

Answer 1

Answer:use herons formula √s(s-a) (s-b) (s-c) where s = 4x+5x+7x/2 and a= 4x b=5x and c=7x

x=3 hence perimeter=4 x 3 + 5 x 3+ 7 x 3 = 48

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