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06 Jun 2017, 11:45
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If quadrilateral WXYZ, above, is a parallelogram, what is the value of b?
A. 25
B. 35
C. 45
D. 50
E. 70
Attachment:
ParallelogramWXYZ.png [ 4.8 KiB | Viewed 5746 times ]
06 Jun 2017, 12:28
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We know that opposite angles in a parallelogram are congruent.
(W=Y and X=Z)
Hence 2b = XWZ = 180 - 110 (Since angles in a straight line add up to a 180)
Since we are asked the value of b,
b = 70/2 = 35(Option B)
Sent from my ONEPLUS A3003 using GMAT Club Forum mobile app
(W=Y and X=Z)
Hence 2b = XWZ = 180 - 110 (Since angles in a straight line add up to a 180)
Since we are asked the value of b,
b = 70/2 = 35(Option B)
Sent from my ONEPLUS A3003 using GMAT Club Forum mobile app
gmatexam439
06 Jun 2017, 12:54
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Opposite angles of a ||gm are equal;
Therefore, W=Y
70=2b
=>b=35
Answer => B
Therefore, W=Y
70=2b
=>b=35
Answer => B
