Hidden faces

... Joe Durrant Hidden faces - maths coursework task 1. Introduction Fig. 1 shows a cube placed on a table When a cube is placed on a table only 5 of the faces can be seen. So 1 Face is hidden. Fig. 2 shows a row of 5 cubes placed on a table. These 5 cubes have a total of 30 faces. 13 of these faces are hidden. 1) Fig. 3 shows a row of 8 cubes placed on a table. These 8 cubes have a total of 48 sides 26 are visible so 22 are hidden. 2) Investigate the number of hidden faces for other rows of cubes. 3) Fig. 4 shows cuboids made from 30 cubes. Find the number of hidden faces. 4) Investigate the number of hidden faces for other cuboids made from cubes. Table of results. Number of cubes Total faces Visible faces Hidden faces 1 2 3 4 5 6 7 8 6 12 18 24 30 36 42 48 5 8 11 14 17 20 23 26 1 4 7 10 13 16 1 22 The total number of faces goes up by 6 each time I add a cube because

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