1.

A window is in the shape of a rectangle surmounted by a semi-circle. If the perimeter of the window be 20 feet then find the maximum area.

Answer»

`(L^(2))/(2pi+4)`
`(l^(2))/(pi+8)`
`(l^(2))/(2pi+8)`
`(l^(2))/(8pi+4)`

ANSWER :C


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