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Question

Find the maximum area of a rectangle of perimeter 176cm.

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Solution

Letthelengthofrectanglebex,thenwidth=(176/2x)=(88x)Area=A=x(88x)=88xx2norforareatobemaximum,(dAdx)=0882x=0orx=88/2=44maximumarea=x(88x)=44(8844)=442=1936squnit


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