A window has the shape of a rectangle surmounted by an equilateral triangle. If the perimeter of the window is 12 m, find the dimensions of the rectangle that will produce the largest area of the window.

A window is in the form of a rectangle surmounted by a semi-circular opening. The total perimeter of the window is 20 m. Find the dimensions (height, breadth and radius of the semicircle) of the window so as to admit maximum possible light through the whole opening.

A window is in the form of a rectangle surmounted by a semicircular opening. The total perimeter of the window is 10 meter. Find the dimensions (height, breadth and radius of the semicircle) of the window so as to admit maximum possible light through the whole opening.

A window is in the form of a rectangle surmounted by a semi-circular opening. The total perimeter of the window is 20 m. Find the dimensions of the window to admit maximum light through the whole opening.

A window is in the form of a rectangle surmounted by a semi-circular opening. The total perimeter of the window is 10 m. Find the dimensions of the window to admit maximum light through the whole opening.

A window is in the form of a rectangle surmounted by a semi-circular opening. The total perimeter of the window is 100 meters. Find the dimensions (height, breadth and radius of the semicircle) of the window so as to admit maximum possible light through the whole opening