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Mathematics 16 Online
OpenStudy (chancemorris123):

Which of the following conditions in a quadrilateral proves it is a parallelogram? A. One pair of opposite sides are congruent. B. One angle is supplementary to both consecutive angles. C. One pair of opposite angles are congruent. D. The diagonals are congruent.

OpenStudy (haseeb96):

what do you think which one is correct?

OpenStudy (chancemorris123):

d?

OpenStudy (haseeb96):

Correct

OpenStudy (chancemorris123):

thanks

OpenStudy (anonymous):

|dw:1436330675007:dw|

OpenStudy (anonymous):

what about B?

OpenStudy (mathstudent55):

|dw:1436328282297:dw|

OpenStudy (mathstudent55):

|dw:1436328385343:dw|

OpenStudy (mathstudent55):

|dw:1436328475870:dw|

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