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26 Nov 2020, 00:50
Kudos
Bookmarks
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
64% (01:30) correct
36%
(01:22)
wrong
based on 76
sessions
History
Date
Time
Result
Not Attempted Yet
In the triangle ABC above, what is the length of side AB?
(1) Line segment BD has length 8
(2) Line segment CD has length 8
(1) Line segment BD has length 8
(2) Line segment CD has length 8
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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
26 Nov 2020, 07:01
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Hoozan
Statement 1: Line segment BD has length 8
Triangle ABD is an isosceles triangle with AB = BD (Side opposite equal angles)
Therefore AB = 8
Statement 1 is sufficient. Answer options could be A or D
Statement 2: Line segment CD has length 8
In Triangle BDC, Angle BDC = 180 - 2x (Sum of angles on a straight line = 180)
Therefore 180 - 2x + x + Angle B = 180 (Sum of angles of a triangle = 180)
Angle B = x
Triangle BDC is an isosceles triangle with BD = CD = 8 (Side opposite equal angles)
Since AB = BD, AB = 8
Statement 2 is sufficient.
Option D
Arun Kumar
08 Feb 2022, 14:09
Kudos
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