A house has the shape of a cube and a volume of 729. One third of the wall surface consists of windows. What total area does the windows have?
S^3 = 729
S = 9 = Length of each side.
A = 4*(L*h) = 4*(9*9) = 324 = Area of the 4 walls.
Aw = 324/3 = 108 = Total area of the windows.