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03 Mar 2022, 02:30
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
66% (00:37) correct
34%
(00:14)
wrong
based on 58
sessions
History
Date
Time
Result
Not Attempted Yet
In the figure above, w + x + y + z =
A. 330
B. 300
C. 270
D. 240
E. 210
Attachment:
2018-12-25_1206.png [ 6.34 KiB | Viewed 2744 times ]
kungfury42
Joined: 07 Jan 2022
Last visit: 31 May 2023
Posts: 580
Given Kudos: 724
Schools: NUS '25 (A)
GMAT 1: 740 Q51 V38
GPA: 4
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03 Mar 2022, 04:28
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The 30° angle and the angle between w and z are vertically opposite angles which by definition we know are equal in magnitude.
So we now have 30°+x+w+30°+z+y=360° (full circle) which means w+x+y+z=300°
Hence, option B.
Posted from my mobile device
So we now have 30°+x+w+30°+z+y=360° (full circle) which means w+x+y+z=300°
Hence, option B.
Posted from my mobile device
03 Mar 2022, 06:54
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Let the angle opposite 30 be a
Angle a = 30 as they are vertically opposite angles
So, w+x+y+z+30+30 = 360 as they angles at a point
=> w+x+y+z = 360-30-30 = 300
Angle a = 30 as they are vertically opposite angles
So, w+x+y+z+30+30 = 360 as they angles at a point
=> w+x+y+z = 360-30-30 = 300
