If the length (L cm) and breadth (B cm) of a rectangle are increased by 25%, fmd the difference between the areas of the old and new rectangles.
Given
If the length (L cm) and breadth (B cm) of a rectangle are increased by 25%, find the difference between the areas of the old and new rectangles,
Let length = L cm and B be B cm
Now old area will be $$L\times B$$ sq cm
New area will be length = $$\frac{5 L}{4}$$ cm and breadth =Â $$\frac{5 B}{4}$$cm
So new area will be $$\frac{25 LB}{16}$$ sq cm
Therefore difference will be $$\frac{25 LB}{16}$$- LB =$$\frac{9 LB}{16}$$ sq cm
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