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April 18, 2014

April 18, 2014

Posted by **kelsey** on Wednesday, February 29, 2012 at 4:29am.

- math -
**Steve**, Wednesday, February 29, 2012 at 12:30pmAssuming a height of 2m per person, that would require 6 rows of people.

1+2+3+...+6 = 21 people

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