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02 Sep 2018, 23:26
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E
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:
74% (01:34) correct
26%
(01:45)
wrong
based on 82
sessions
History
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Not Attempted Yet
Pentagon ABCDE has equal sides and equal angles. If O is the center of pentagon ABCDE, what is the sum of angles AOB and DOE?
A. 36
B. 54
C. 72
D. 108
E. 144
A. 36
B. 54
C. 72
D. 108
E. 144
03 Sep 2018, 00:41
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Bunuel
Each Angle at the centre = 360/n = 360/5 = 72
Sum of the two . such angles = angle AOB + angle DOE = 2*72 = 144
Answer: option E
Attachments
Pentagon.png [ 17.93 KiB | Viewed 2119 times ]
Manicks
Joined: 17 Aug 2019
Last visit: 07 Jan 2025
Posts: 10
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Location: Singapore
Concentration: Finance, General Management
Schools: SMU MAF "21 (A)
GMAT 1: 620 Q46 V30
WE:Analyst (Commercial Banking)
03 Jan 2020, 22:43
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360 deg / 5 = 72 deg
72 deg * 2 = 144 deg
Ans: Option E
72 deg * 2 = 144 deg
Ans: Option E
