A rectangular hole is to be cut in a wall for a vent. If the perimeter of the hole is 48 in. and the length of the diagonal is a minimum, what are the dimensions of the hole? (3' Let the length and width of the hole he x and y, respectively, and let the length of the diagonal be D. Find an equation that describes the quantity to be minimized. E (Type an equation.) The length of the diagonal is a minimum when the hole is E El by BB (Type integers or decimals. Use ascending order.)