Question

the area of rectangle 144m long, is the same as that of a square having a side 84m long, than width of the rectangle is

Answer 1

Area of square = Area of rectangle
Therefore ,

Area of square = l×b
= 84×84
= 7056m^2

Area of rectangle = l×b
7056 = 144×b
7056÷144 =b
49 = b

Answer 2

Given : Area of rectangle with side 144 m  is same as of  a  square with side 84 m

To Find : Width of the rectangle

Solution:

Area of Rectangle = Length x Width

Length = 144 m

Width = W m

Area = 144W  m²

Area of the square = Side²

Side of square = 84 m

=> Area = 84² m²

Equating Area

144W  = 84²

=> 12² W = 84²

=> W = 7²

=> W = 49

Width of the rectangle = 49 m

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