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Mathematics 11 Online
OpenStudy (anonymous):

Based on the information given, can you determine that the quadrilateral must be a parallelogram? explain

OpenStudy (anonymous):

OpenStudy (nikato):

Is this all?

OpenStudy (anonymous):

@nikato line XN is equal to line NZ & line NY is equal to NW

OpenStudy (nikato):

U can

OpenStudy (anonymous):

how? @nikato

OpenStudy (nikato):

There's a theorem that says the diagonals of a parallelogram bisect each other

OpenStudy (nikato):

So in diagonal XZ, XN=NZ

OpenStudy (nikato):

And in WY, WN=NY

OpenStudy (nikato):

So XZ bisects WY

OpenStudy (nikato):

So the two diagonals bisect each other

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