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Mathematics 11 Online
OpenStudy (anonymous):

Show that the points H(1, -1), I (7,3), J(3,5) and K(-3,1) are the vertices of a parallelogram.

OpenStudy (anonymous):

Do you know vectors?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

okay..then..do you know that in a parallelogram opposite sides are parallel?

OpenStudy (anonymous):

yes

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