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Mathematics, 20.04.2020 23:58 jahnoibenjamin

AB = 6x
DC = x + 15
AD = 9
BC = 3y
Quadrilateral ABCD is a parallelogram if both pairs of opposite sides are congruent. Show that quadrilateral ABCD is a parallelogram by finding the lengths of the opposite side pairs.

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AB = 6x
DC = x + 15
AD = 9
BC = 3y
Quadrilateral ABCD is a parallelogram if...
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