Question 12
The figure consists of 3 layers of cubes, each \(2\times2\times2\) cm. Find the total area of the visible surfaces from the top and sides, in square centimetres.
Count all exposed top and vertical side surfaces, including sides hidden behind the drawing, but exclude the underside. The layers are complete 3-by-3, 2-by-2 and 1-by-1 square layers as intended by the source figure.
Count all exposed top and vertical side surfaces, including sides hidden behind the drawing, but exclude the underside. The layers are complete 3-by-3, 2-by-2 and 1-by-1 square layers as intended by the source figure.