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Hidden Faces Introduction I need find out a formula for the number of hidden and visible faces of a line of cubes placed on a flat table Eg for a line of three cubes there is a total of 18 faces 11 of them are visible and 7 of them are hidden I will need to find a formula for a quicker way of working this out I will draw the cubes and write up tables to help me to find the formula I think that this is a good method because its easy to see I have found out a pattern Multiply the middle cubes in each line buy three and then add eight to find out the number of visible faces eg for four cubes there are two middle cubes so 2x3 6 and then add on eight equalling fourteen I will now start putting my cubes into a table This will make it easier for me to start looking for more patterns in order to find formula Number of cubesHidden faces Visible facesTotal faces 1 1 5 6 2 4 8 12 3 7 11 18 4 10 14 24 5 13 17 30 6 16 20 36 7 19 23
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