|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
24 Nov 2021, 03:00
Kudos
Bookmarks
C
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:
75% (00:27) correct
25%
(00:28)
wrong
based on 40
sessions
History
Date
Time
Result
Not Attempted Yet
Is quadrilateral ABCD a square?
(1) ABCD is a rhombus.
(2) ABCD is a rectangle.
(1) ABCD is a rhombus.
(2) ABCD is a rectangle.
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 2021, 06:51
Kudos
Bookmarks
1) Rhombus: all sides equal, opposite sides parallel and angles opposite each other are equal
==> insufficient, we don't know angle measurements
2) Rectangle: opposite sides are equal and all angles are 90 degrees
==> insufficient, we don't know if adjacent sides are equal
1) and 2)
From 1 all sides are equal
From 2 all angles are 90 degrees
Therefore if ABCD is both a rhombus and a rectangle then it must be a square
==> C
==> insufficient, we don't know angle measurements
2) Rectangle: opposite sides are equal and all angles are 90 degrees
==> insufficient, we don't know if adjacent sides are equal
1) and 2)
From 1 all sides are equal
From 2 all angles are 90 degrees
Therefore if ABCD is both a rhombus and a rectangle then it must be a square
==> C
Moderator:
