The diagram below has rotational symmetry. How many regular pentagons are there?.

Please help to get the solution. Please find Attached

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- Aug 16th 2010, 11:18 PMalanpaulrotational symmetryThe diagram below has rotational symmetry. How many regular pentagons are there?.

Please help to get the solution. Please find Attached - Aug 17th 2010, 02:40 AMVlasev
I see at least 7. 1 Outer pentagon. 1 inner central pentagon. 5 small pentagons forming the central pentagon. There may be more, but I doubt it.

- Aug 17th 2010, 02:51 AMAckbeetQuote:

5 small pentagons forming the central pentagon.

- Aug 17th 2010, 03:27 AMVlasev
Oops, you are right. I was blind.