The area of a rectangle having length 'l' and breadth 'b' is equal to 'A'.Then what will be the area of rectangle having length 2l and breadth 2b ?

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Solution

The unchanging relation of area is given by A= $l \times b$

The area of new rectangle will be given by A'= $2 l \times 2 b$

A'=4lb

A'=4A

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