Q:

A Norman window is a window with a semi-circle on top of regular rectangular window. What should be the dimensions of the rectangular part of a Norman window to allow in as much light as possible, if there are only 12 ft of the frame material available?

Accepted Solution

A:
The dimensions of the rectangular portion of the window should be 4 by 4.

To maximize area, we make the dimensions as close to congruent as possible.  Since there will be 3 sides on the rectangular portion with a frame around them, we divide 12 by 3:
12/3 = 4

This means it should be 4 by 4.