The dimension of a closed box are 30cm by 20cm by 10cm high. If the thickness of all six panels is 1 cm find its volume.
the inside dimensions are 2cm less than the outside, so its inside volume is
v = (30-2)(20-2)(10-2) = 28*18*8 = ? cm^3
v = (30-2)(20-2)(10-2) = 28*18*8 = ? cm^3