18 Mar 2013
Three Cubes of Three Colours: Upper Primary Mathematics Competition Question
How many different 3-cube shapes can you make?
Now, remember that these are three-dimensional objects that you can pick up and rotate in space. So, make sure that your arrangements are truly different from each other even after rotating them. One possible arrangement is shown in the diagram below.
So the real question is, how many unique shapes can you make using these three cubes of three different colours?
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