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Mathematics 12 Online
OpenStudy (anonymous):

Prove: If the diagonals of a quadrilateral bisect each other, then the quadrilateral is a parallelogram. ABCD is a parallelogram. 

OpenStudy (calculusxy):

Hope that this provides a better illustration for this:

OpenStudy (anonymous):

C:\Users\pickford8\Pictures\q418a.gif

OpenStudy (anonymous):

C:\Users\pickford8\Pictures\q418b.gif here are the link's I need help.

OpenStudy (anonymous):

I don't understand this?

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