the area of rectangle is equals with the area of square which is formed the rectangle length is decreased by 4cm and breadth is increased by 3cm.then find the perimeter of rectangle?
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Answer:
50 cm
Step-by-step explanation:
let the side of the rectangle be X and Y when the rectangle is converted into the square the side of the square comes to know that one of the sides is x minus 4 and the other side is Y + 3 we know that the sides of a square are equal so x minus 4 is equals to Y + 3 y e x minus y = 27 equation number 1
the area of the square and the rectangle are equal
the area of the rectangle is equal to the area of a square
we get x y is equals to Y + 3 into x-4
from here we get 3 x - 4 Y = 12 by solving equations we get X = 16 and Y =9
Now perimeter=2(16+9)
=50cm
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