document.write( "Question 416957: is having One pair of consecutive angles are congruent enough information to prove a quadrilateral is a parallelogram \n" ); document.write( "

Algebra.Com's Answer #292011 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "is having One pair of consecutive angles are congruent 
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document.write( "enough information to prove a quadrilateral is a parallelogram?
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document.write( "  NO, one of the following conditions must be shown to be true.
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document.write( "1) If a quadrilateral has one pair of sides that are both parallel and congruent, 
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document.write( "then the quadrilateral is a parallelogram. 
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document.write( "2) If the opposite sides of a quadrilateral are congruent, 
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document.write( "then then quadrilateral is a parallelogram. 
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document.write( "3) Opposites sides are parallel. 
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document.write( "4) 'Opposite angles are congruent' 
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document.write( "5) Diagonals bisect each other. 
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