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17 Jul 2017, 23:19
Kudos
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
65% (01:58) correct
35%
(01:28)
wrong
based on 82
sessions
History
Date
Time
Result
Not Attempted Yet
ABC is a triangle with BC = AC = 6. D is a point on AB. What is the length of CD?
(1) ∠ACB = 120◦.
(2) CD is the bisector of ∠ACB.
(1) ∠ACB = 120◦.
(2) CD is the bisector of ∠ACB.
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
Bunuel
It should be C.
Statement 1: This provides us no information about D.
Statement 2: We need at least 3 parameters to accurately measure a triangle and with length of two arms, we have no way of measuring the original triangle ABC.
Combined, we should be able to measure the original triangle and its equal split at D.
Edit: Attaching diagram.
Attachments
diagram3.jpg [ 17 KiB | Viewed 2463 times ]
Bunuel
the given triangle is isoscles traingle...
stat1 : no info on location of D
stat2: not suff to calculte the length of CD..
both combines,,, triangle BCD is 30-60-90 and hence CD= 3..
ans C
hope tat helps
