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Pythagorean Theorem

by XSapien - uploaded on July 14, 2012, 7:54 pm

They loved it!

• tttool on August 22, 2013, 2:18 am
• B.Lachner on October 15, 2015, 5:42 am
• GDJ on April 16, 2019, 3:02 am