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Interior Angle Aggregate (Posted on 2014-09-16) Difficulty: 2 of 5
Consider a piece of paper having shape of a triangle which we denote by triangle ABC.

Using paper folding alone, prove that the sum of the interior angles of the triangle ABC equals 180o.

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
Solutionalternate solutionJer2014-09-16 12:07:39
A solutionJer2014-09-16 11:52:06
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