B A piece of wire 130 cm long is cut into 6 sections, 2 of one length and 4 of another length. Each of the two sections having the same length is bent into the form of a circle, and the two circles are then joined by the four remitting sections to make a frame for a model ofe right circular cylinder. Find the lengths of the sections that will maximize the volmne of the cylinder. What is the largest possible area of a rectangle inscribe between the x-axis and the curve 3 = 11 4 8? l5] l5]