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Question

If the area of rectangle is 24 cm sq and its perimeter is 22 cm then what are the sides in meters?

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Solution

Dear student,


Given that:-Area of rectangle=24 cm2lb=24 ---(1)Area of rectangle=22 cm2l+b=22 cml+b=11 cm l=11-b ---(2)from (1) and (2)11-b×b=24 11b-b2=24b2-11b+24=0b2-8b-3b+24=0bb-8-3b-8=0b-3b-8=0b=3, b=8thus, b=3cm=3100=0.03mand l=8 cm=8100=0.08 m
Regards

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