Technically, the volume of the surface would be the surface area, but assuming that's what you're referring to, and that the thickness of the waste basket doesn't add any extra volume/area, this is how you would solve that: SA=2(wh+lw+lh) SA=2[3/4(2)+1 1/2(3/4)+1 1/2(2)] SA=2(1 1/2+1 1/8+3) SA=2(45/8) SA=11 1/4 ft
If there is no lid, you would subtract the lw: SA=2(wh+lh) SA=2[3/4(2)+1 1/2(2)] SA=2(1 1/2+3) SA=2(4 1/2) SA=9 ft