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.
Apr 2512:30 AM EDT
-01:30 AM EDT
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
Apr 2601:30 AM EDT
-02:30 AM EDT
Learn how Keshav, a Chartered Accountant, scored an impressive 705 on GMAT in just 30 days with GMATWhiz's expert guidance. In this video, he shares preparation tips and strategies that worked for him, including the mock, time management, and more.
Apr 2610:00 AM EDT
-11:00 AM EDT
The Target Test Prep course represents a quantum leap forward in GMAT preparation, a radical reinterpretation of the way that students should study. Try before you buy with a 5-day, full-access trial of the course for FREE!
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
May 0111:00 AM PDT
-12:00 PM PDT
Free- full-length test + 15 concept videos + 150+ short videos + study plan!
08 May 2019, 00:04
Kudos
Bookmarks
A
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:
73% (00:53) correct
27%
(00:48)
wrong
based on 56
sessions
History
Date
Time
Result
Not Attempted Yet
In the figure above, ABDE is a rectangle with an area of 18. What is the area of triangle ACE?
A. 9
B. 10
C. 11
D. 12
E. It cannot be determined from the information provided.
Attachment:
2019-05-08_1059.png [ 13.16 KiB | Viewed 3003 times ]
Archit3110
Major Poster
08 May 2019, 00:06
Kudos
Bookmarks
Bunuel
area = l*b = 18
are of ∆; 1/2 * l*b = 9
IMO A
15 May 2019, 01:05
Kudos
Bookmarks
As you start off solving this question, you may feel that the data is insufficient and that the question is a difficult one on Geometry. However, that is not the case. The concept, basis which you can solve this question is as described below:
14th May 2019 - Reply 1.JPG [ 23.46 KiB | Viewed 2682 times ]
Let’s consider a rectangle of length ‘l’ and breadth ‘b’.
On one of the longer sides, say CD, let’s mark a point, say E to which the endpoints of the other length, i.e. A and B are joined. In such a case, the triangle formed with the length AB as the base , will always have an area that is equal to half the area of the rectangle.
Also, the other two smaller triangles i.e. \(\triangle BCE\) and \(\triangle ADE\), will contribute the other half of the area of the rectangle (this is not to say that the area of the two smaller triangles will always be one-quarter of the rectangle).
Once you know this concept, it becomes very easy for you to figure out that this is the concept on which you are being tested in this question.
In the diagram that we have, \(\triangle ACE\) is clearly a triangle which has been drawn keeping AE, the length of the rectangle, as the base. Hence, the area of \(\triangle ACE\) should be half of the area of the rectangle ABDE.
Therefore, the area of \(\triangle ACE\) is 9 square units and the correct answer option is A.
If you knew this concept beforehand, you will barely need half a minute to solve this question and mark the right answer. If this concept was a little obscure till now, we hope that we have provided clarity on this.
Hope this helps!
Attachment:
14th May 2019 - Reply 1.JPG [ 23.46 KiB | Viewed 2682 times ]
Let’s consider a rectangle of length ‘l’ and breadth ‘b’.
On one of the longer sides, say CD, let’s mark a point, say E to which the endpoints of the other length, i.e. A and B are joined. In such a case, the triangle formed with the length AB as the base , will always have an area that is equal to half the area of the rectangle.
Also, the other two smaller triangles i.e. \(\triangle BCE\) and \(\triangle ADE\), will contribute the other half of the area of the rectangle (this is not to say that the area of the two smaller triangles will always be one-quarter of the rectangle).
Once you know this concept, it becomes very easy for you to figure out that this is the concept on which you are being tested in this question.
In the diagram that we have, \(\triangle ACE\) is clearly a triangle which has been drawn keeping AE, the length of the rectangle, as the base. Hence, the area of \(\triangle ACE\) should be half of the area of the rectangle ABDE.
Therefore, the area of \(\triangle ACE\) is 9 square units and the correct answer option is A.
If you knew this concept beforehand, you will barely need half a minute to solve this question and mark the right answer. If this concept was a little obscure till now, we hope that we have provided clarity on this.
Hope this helps!
