|
|
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.
17 Apr 2018, 05:45
Kudos
Bookmarks
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:
89% (00:47) correct
11%
(01:07)
wrong
based on 104
sessions
History
Date
Time
Result
Not Attempted Yet
A square is inscribed in a circle. What is the area of the circle?
(1) The area of the square is 18.
(2) The circumference of the circle is \(6\pi\).
(1) The area of the square is 18.
(2) The circumference of the circle is \(6\pi\).
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
17 Apr 2018, 10:28
Kudos
Bookmarks
IMO D
if a square is inscribed in a circle then the diagonal of the square is also the diameter of the circle. If we know the value of one we can find the other
Statement (1)- area of the square is given. From this we can find the diagonal of square and hence the radius of the circle. Thus area of the circle can be known. Hence sufficient
Statement(2)-Radius can be known from this and hence the area of the circle. Sufficient
Hence D
Posted from my mobile device
Posted from my mobile device
if a square is inscribed in a circle then the diagonal of the square is also the diameter of the circle. If we know the value of one we can find the other
Statement (1)- area of the square is given. From this we can find the diagonal of square and hence the radius of the circle. Thus area of the circle can be known. Hence sufficient
Statement(2)-Radius can be known from this and hence the area of the circle. Sufficient
Hence D
Posted from my mobile device
Posted from my mobile device
18 Apr 2018, 05:27
Kudos
Bookmarks
Bunuel
We are given that square is inscribed in a circle, but we dont know whether its the largest possible square inscribed in that circle or not.
To solve this question, we need to know the radius of this circle.
(1) Area of square = side*side = 18. So side of square can be found but we dont know whether its the largest possible square which can be inscribed in this circle, so we cannot apply the relation that diagonal of this square = diameter of this circle. So we cannot find the diameter or the radius of this circle. So not sufficient.
(2) Circumference is given, so we can find the radius, and can thus find the area. Sufficient.
Hence B answer
