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Mathematics 7 Online
OpenStudy (anonymous):

SOMEONE HELP W/ MY QUESTION :( MEDAL AND FAN AWARDED :'(

OpenStudy (anonymous):

The following is an incomplete two-column proof that rectangle ABCD is a parallelogram with congruent diagonals:

OpenStudy (anonymous):

What reason completes the proof? Alternate Interior Angles Theorem Definition of Congruence Property of Parallelograms Same-Side Interior Angles Theorem

OpenStudy (anonymous):

I think its B ... but not positive

OpenStudy (shaik0124):

i too think b but have doubt

OpenStudy (anonymous):

its b

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