Events & Promotions
|
|
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.
May 1810:00 AM PDT
-11:00 AM PDT
Join us in a live GMAT practice session and solve 25 challenging GMAT questions with other test takers in timed conditions, covering GMAT Quant, Data Sufficiency, Data Insights, Reading Comprehension, and Critical Reasoning questions.
May 1212:00 PM EDT
-11:59 PM EDT
Make the most of your break with the most realistic GMAT™ prep. Take up to $700 off select products. Ends 6/1
May 1501:00 PM IST
-11:00 AM IST
Start your journey with a fully customized action plan and work with a dedicated mentor to achieve a 735+ score.- May 19
12:00 PM PDT
-01:00 PM PDT
Scoring 329 on the GRE is not always about using more books, more courses, or a longer study plan. In this episode of GRE Success Talks, Ashutosh shares his GRE preparation strategy, study plan, and test-day experience, explaining how he kept his prep.... - Jun 10
06:00 AM PDT
-06:15 PM PDT
Register for the GMAT Club Virtual MBA Spotlight Fair – the world’s premier event for serious MBA candidates. This is your chance to hear directly from Admissions Directors at nearly every Top 30 MBA program..
19 Aug 2021, 16:10
Kudos
Bookmarks
feliciak
Hi feliciak,
If you're dealing with the information in Fact 1, then that proves that the rectangle is a 6x8 (and not a square). By extension, the angles in the triangles would NOT be 45/45/90.
The information in Fact 2 is not nearly as restrictive though. The rectangle COULD be a 6x8, but it COULD also be a square (for example, if the sides were 5√2). In this case, the angles would be 45/45/90.
GMAT assassins aren't born, they're made,
Rich
03 Jan 2022, 05:45
Kudos
Bookmarks
ScottTargetTestPrep
How come we can't find the answer with just statement one? We know the base of the triangle is 6 because QT = RS. So then why can't we create a line from angle P to QT to bisect the base, and then use pyth. theorem to find the height since we would have the hypotenuse (6) and the base (6/2). ?
How come we can't find the answer with just statement one? We know the base of the triangle is 6 because QT = RS. So then why can't we create a line from angle P to QT to bisect the base, and then use pyth. theorem to find the height since we would have the hypotenuse (6) and the base (6/2). ?
03 Jan 2022, 22:22
Kudos
Bookmarks
Hi Skv23,
To start, it's worth remembering that in DS questions, we CANNOT assume that the picture is drawn to scale. For example, triangle PQT might be an equilateral triangle (meaning that all sides have a length of 6 - and we could calculate its area).... BUT we only have one of those 3 sides - and none of its angles - so we do not know what type of triangle it actually is (and thus, we cannot determine its area).
We're asked for the area of region PQRST. This question is based around a couple of Geometry rules. To properly find the area, we can break this shape into 2 pieces (a rectangle and the aforementioned triangle), so we need to know the dimensions of the rectangle and the exact type of triangle.
(1) PQ = RS
With the information in Fact 1, we know that the width of the rectangle is 6 and one of the two missing triangle sides is also 6. Along with the diagonal of the rectangle, we can now calculate its length (it's 8, since we have a 6/8/10 right triangle in the rectangle) but without the 3rd side of the triangle (or its 3 angles), we cannot calculate that other area.
Fact 1 is INSUFFICIENT
GMAT assassins aren't born, they're made,
Rich
To start, it's worth remembering that in DS questions, we CANNOT assume that the picture is drawn to scale. For example, triangle PQT might be an equilateral triangle (meaning that all sides have a length of 6 - and we could calculate its area).... BUT we only have one of those 3 sides - and none of its angles - so we do not know what type of triangle it actually is (and thus, we cannot determine its area).
We're asked for the area of region PQRST. This question is based around a couple of Geometry rules. To properly find the area, we can break this shape into 2 pieces (a rectangle and the aforementioned triangle), so we need to know the dimensions of the rectangle and the exact type of triangle.
(1) PQ = RS
With the information in Fact 1, we know that the width of the rectangle is 6 and one of the two missing triangle sides is also 6. Along with the diagonal of the rectangle, we can now calculate its length (it's 8, since we have a 6/8/10 right triangle in the rectangle) but without the 3rd side of the triangle (or its 3 angles), we cannot calculate that other area.
Fact 1 is INSUFFICIENT
GMAT assassins aren't born, they're made,
Rich
