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Puzzles: Mystic Rose

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Mystic Rose 

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The Mystic Rose is formed by placing equally spaced points around the circumference of a circle and then joining each point to all the others. The example shown is generated from 8 points. If n is the number of points from which the Rose is formed, can you tell me, in terms on n, how many points are formed by the intersection of lines making up the Rose?
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Content Type: Discussion
Created at 13/01/2015 04:06 PM  by John Rowland 
Last modified at 13/01/2015 04:14 PM  by John Rowland