If the length of a rectangle is increased by 20% and the breadth is decreased by 10%, what will be the effect on its area?
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The area will increase too.
If the length is 10cm and the breadth is 5cm then when it is increased it will be 10.2cm and 5.1cm
Area of rectangle=length×breadth
Thus,
10cm×5cm
=50cm
10.2cm×5.1cm
=52.02cm
The percentage increased
=52.05cm-50cm
=2.02cm
Thus, the area will also increase.
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