Thumbtacks

 

by Serhiy Grabarchuk

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A well known thumbtack as shown at the top can be obtained from a simple circle and a pattern to it is almost obvious. 

But what would you say about a new version shown below it? Do you think it can be also obtained from the same circle? If your answer is "yes", then can you draw a pattern required to make such a thumbtack? Maybe it can be obtained from the pattern of the first one?

 
Last Updated: October 8, 2007   |   Posted: August 11, 2001
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