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Mathematics 13 Online
OpenStudy (anonymous):

The vertices of a parallelogram are A(x1, y1), B(x2, y2), C(x3, y3), and D(x4, y4). Which of the following must be true if parallelogram ABCD is proven to be a rectangle? I ALSO HAVE PICTURE OF PROBLEM AND ANSWER CHOICES. WILL MEDAL AND FAN!! PLEASE HELP

OpenStudy (anonymous):

IMAGE OF PROBLEM AND ANSWER CHOICES

OpenStudy (anonymous):

@mathstudent55

OpenStudy (anonymous):

i wanna say b but there is a chance im wrong

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