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21 Aug 2020, 00:00
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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:
15%
(low)
Question Stats:
74% (01:02) correct
26%
(01:11)
wrong
based on 331
sessions
History
Date
Time
Result
Not Attempted Yet
What is the measure, in degrees, of angle BCA in quadrilateral ABCD?
(1) ABCD is a trapezoid with AD parallel to BC
(2) The measure of CAD angle is 35 degrees
Attachment:
Screenshot 2022-08-17 at 7.39.19 PM.png [ 726.25 KiB | Viewed 5419 times ]
Attachment:
trapezoid.png [ 3.13 KiB | Viewed 13063 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
21 Aug 2020, 01:48
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Statement A tells us that AD and BC are parallel but difficult to find the angle - Not Suff
Statement B tells us the measure of one angle, not satisfied.
From both the statement we can say that angle C is 35% using parallel lines and transversal angles rule
C is the answer
Statement B tells us the measure of one angle, not satisfied.
From both the statement we can say that angle C is 35% using parallel lines and transversal angles rule
C is the answer
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21 Aug 2020, 01:50
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(1) ABCD is a trapezoid with AD parallel to BC
No information regarding the alternate angles for the transversal AC is given.
(Insufficient)
(2) The measure of CAD angle is 35 degrees
=> No other information is given to draw the angle BCA measure. (Insufficient)
Combining both, AC is a transversal, AB and CD are parallel so, CAD is the alternate angle equal to BCA.
(Sufficient)
Answer is C
Posted from my mobile device
No information regarding the alternate angles for the transversal AC is given.
(Insufficient)
(2) The measure of CAD angle is 35 degrees
=> No other information is given to draw the angle BCA measure. (Insufficient)
Combining both, AC is a transversal, AB and CD are parallel so, CAD is the alternate angle equal to BCA.
(Sufficient)
Answer is C
Posted from my mobile device
