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February 1, 2015

February 1, 2015

Posted by **unknown** on Tuesday, October 13, 2009 at 5:58pm.

- math -
**Reiny**, Tuesday, October 13, 2009 at 6:04pmSince each pair of interior and exterior angles of the triangle have to add up to 180, that would mean you would need 2 interior angles of the triangle to be 90 degrees each.

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