A window is in the shape of a rectangle surmounted by a semi circle. If the perimeter of the window is of fixed length then the maximum area of the window is

A window is in the shape of a rectangle surmounted by a semi circle. If the perimeter of the window is of fixed length k then the maximum area of the window is

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.

A window is in the shap of a rectangle surmounted by a semicircle. If the perimeter of the window is 20 ft, find the maximum area.

A window is in the form of a rectangle surmounted by a semi-circle.If the total perimeter of the window is 30m, find the dimensions of the window so that maximum light is admitted.