Hi, . 23/4 by 7/3 A =Lw = (23/4)(7/3) = 161/12 ft^2 = 13 5/12 ft^3 P = 2(23/4) + 2(7/3) = 23/2 + 14/3 = 3*23/6 + 14*2/6 = 97/6 = 16 1/6 ft