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March 4, 2015

March 4, 2015

Posted by **chino** on Wednesday, April 18, 2012 at 1:34pm.

1. A triangle is a right triangle if and only if it has a right angle.

2. A triangle has a right angle if and only if it is a right triangle.

CO = contrapositive

BI = biconditional

LE = logical equivalent

CV = converse

IN = inverse

- math -
**Nigel**, Thursday, July 12, 2012 at 11:39amLE

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