A window is
in the form of a rectangle surmounted by a semi-circle. If the total
perimeter of the window is `30" m",`
find the dimensions of the window so that
maximum light is admitted.
A. `(20)/(4+pi) m, (20)/(4+pi)m`
B. `(30)/(4+pi) m, (30)/(4+pi)m`
C. `(20)/(4+pi) m, (40)/(4+pi) m`
D. `(30)/(4+pi) m, (60)/(4+ pi) m`
