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31 Dec 2017, 12:25
Kudos
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
83% (00:34) correct
17%
(00:42)
wrong
based on 83
sessions
History
Date
Time
Result
Not Attempted Yet
What is the perimeter of equilateral triangle DEF?
(1) The area of triangle DEF is \(9\sqrt{3}\)
(2) DE = 6
(1) The area of triangle DEF is \(9\sqrt{3}\)
(2) DE = 6
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
31 Dec 2017, 13:21
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Bunuel
(A) - Area of Equilateral Triangle is √3/4 * (side)^2. Using this we can calculate side of triangle as 6. All sides of equilateral triangle are equal so parameter is 3*6 = 18. Hence Sufficient
(B) - Side of triangle is given. Sufficient - Same as A.
Hence both the options are sufficient. Correct Answer is D.
Thanks
Piyush
Please give me kudos +1
22 Jul 2020, 09:03
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Statement 1:Sufficient
Area of equilateral triangle = \(\frac{\sqrt{3}}{4}*side^2\) = \(9\sqrt{3}\)
=> side = 6 and perimeter = 3*6 = 18
Statement 2: Sufficient
Perimeter = 6*3 = 18
Hence, OA is (D).
Area of equilateral triangle = \(\frac{\sqrt{3}}{4}*side^2\) = \(9\sqrt{3}\)
=> side = 6 and perimeter = 3*6 = 18
Statement 2: Sufficient
Perimeter = 6*3 = 18
Hence, OA is (D).
