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D AB = 21 DC = 3x AD = y +7 BC = 2y Quadrilateral ABCD is a parallelogram if both pairs of opposite sides are congruent. Show that quadrilateral ABCD is a parallelogram by findi…

D AB = 21 DC = 3x AD = y +7 BC = 2y Quadrilateral ABCD is a parallelogram if both pairs of opposite sides are congruent. Show that quadrilateral ABCD is a parallelogram by findi…
asked 55.6k views
2 votes
D

AB = 21
DC = 3x
AD = y +7
BC = 2y
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.
A)
7.3
B)
14,7
21,7
D
21, 14

asked
User Michaela Elschner
by
7.0k points

1 Answer

2 votes

Answer:

D) 21,14

Explanation:

answered
User Petruza
by
8.1k points
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