Question

if the perimeter of the rectangle is 112 cm π.its length is (4x-5)cm and breath is (2x-5) cm , find the perimeter?

Answer 1

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Step-by-step explanation:

LENGTH = 4x-5 cm

and,

BREADTH = 2x-5 cm

HENCE ;

PERIMETER OF RECTANGLE = 2 x (L+B)

                                                 = 2 x { (4x-5) + (2x-5) }

                                                 = 2 x { (4x - 5 + 2x - 5) }

                                                 = 2 x { 6x-5 }

                                                 = 12x - 10 cm.