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07 Feb 2018, 05:59
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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:
25%
(medium)
Question Stats:
69% (00:33) correct
31%
(00:39)
wrong
based on 84
sessions
History
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Time
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Not Attempted Yet
In the figure above, is angle ABC a right angle?
(1) AC is the diameter of the circle.
(2) AB = BC
Attachment:
2018-02-07_1657.png [ 7.89 KiB | Viewed 2396 times ]
Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
For relevant Data Sufficiency questions, please check the Data Sufficiency forum:
Data Sufficiency Forum
Data Sufficiency Forum
07 Feb 2018, 13:43
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Inscribed angles:
- In order for Angle ABC to be 90, AC must be the diameter.
(1) AC is the diameter of the circle --> SUFF --> A or D
(2) AB = BC --> Many different cases. --> INS
Answer is A
- In order for Angle ABC to be 90, AC must be the diameter.
(1) AC is the diameter of the circle --> SUFF --> A or D
(2) AB = BC --> Many different cases. --> INS
Answer is A
rahul12988
11 Sep 2019, 20:20
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A) Prop of circle. AC is the diameter of the circle then angle b= 90 Suff
B) AB = BC then A= 45 C=45 & B =90
A= 60 C=60 B =60 so NS
Ans A
B) AB = BC then A= 45 C=45 & B =90
A= 60 C=60 B =60 so NS
Ans A
