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15 Jun 2022, 02:00
Kudos
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
46% (01:13) correct
54%
(01:09)
wrong
based on 46
sessions
History
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Time
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Not Attempted Yet
In the quadrilateral CDEF, CD||EF and DE||CF. Do all sides of CDEF have the same length?
(1) CE = DF.
(2) All angles of CDEF are the same.
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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
18 Jun 2022, 06:36
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(1) CE = DF.
Quadrilateral is an umbrella term which encompasses several shapes. Focusing on the two simplest ones - a square and a rectangle - one immediately can see that this statement is insufficient. Both will have 2 equal diagonals, however, squares comprise of 4 equal sides, while rectangles comprise of 2 pairs of equal sides.
INSUFFICIENT
(2) All angles of CDEF are the same.
Once again looking at squares and rectangles, both have angles which are all equal but squares have 4 equal sides and rectangles have 2 pairs of equal sides.
INSUFFICIENT
(1)+(2)
Putting the two statements together does not provide enough information to determine if quadrilateral CDEF is in fact a square.
INSUFFICIENT
Answer E
Quadrilateral is an umbrella term which encompasses several shapes. Focusing on the two simplest ones - a square and a rectangle - one immediately can see that this statement is insufficient. Both will have 2 equal diagonals, however, squares comprise of 4 equal sides, while rectangles comprise of 2 pairs of equal sides.
INSUFFICIENT
(2) All angles of CDEF are the same.
Once again looking at squares and rectangles, both have angles which are all equal but squares have 4 equal sides and rectangles have 2 pairs of equal sides.
INSUFFICIENT
(1)+(2)
Putting the two statements together does not provide enough information to determine if quadrilateral CDEF is in fact a square.
INSUFFICIENT
Answer E
18 Mar 2025, 21:09
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