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Lattice Pentagon (Posted on 2024-04-04) Difficulty: 3 of 5
We have an old problem Equilateral Triangle which asked can an equilateral triangle have all three of its vertices on lattice points on a 2-D plane or in 3-D space. Those answers were "no" and "yes", respectively.

I ask can a regular pentagon be placed in 2-D with all five of its vertices on lattice points? If that is not possible what about 3-D space?

No Solution Yet Submitted by Brian Smith    
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  Subject Author Date
Some Thoughts3D solution?Jer2024-04-05 13:30:54
Some Thoughts2D solutionJer2024-04-05 11:56:19
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