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| Math Central | Quandaries & Queries |
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Mhiko, a student: how many hidden faces of a cubes are there in a 5 cubes in a row? |
Hi Mhiko,
I assume by hidden faces you mean something like this:
I've highlighted the hidden faces in red. Think about the following pattern:
1 cube has no hidden faces
2 cubes has 1 hidden face
3 cubes has 2 hidden faces
4 cubes has 3 hidden faces
How many hidden faces will 5 cubes have? What's the relationship between the number of cubes and the number of hidden faces?
Hope this helps,
Janice
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