A trapezoidal gutter is to be made, from a strip of metal 22 inches wide by bending up the edges. If the base is 14 inches wide, what width across the top gives the greatest carrying capacity.
Solve Problem 06, if the strip is 13 inches wide and the base width 7 inches.
Solve Problem 06 if the strip is 9 inches wide and the base width 3 inches.
Solve Problem 06, if the strip width is w and the base width b.