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27 Jul 2017, 01:48
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
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90% (00:24) correct
10%
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based on 56
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In the figure above, three right triangles have a common vertex. Then x + y + z =
(A) 90
(B) 120
(C) 135
(D) 180
(E) 270
Attachment:
2017-07-27_1246.png [ 11.4 KiB | Viewed 1784 times ]
27 Jul 2017, 01:57
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Bunuel
In the figure above, three right triangles have a common vertex. Then x + y + z =
(A) 90
(B) 120
(C) 135
(D) 180
(E) 270
Attachment:
2017-07-27_1246.png
x+y+z + 3*90 = 360 (sum of all the angles around a point is 360 degrees )
=> x+y+z = 90
Answer A
27 Jul 2017, 02:25
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360 -270. Because total is 360 and the sum of the right angles is 90+90+90.
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Sent from my Lenovo TAB S8-50LC using GMAT Club Forum mobile app
