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 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.
Apr 2912:30 AM EDT
-01:30 AM EDT
Learn how Kamakshi achieved a GMAT 675 with an impressive 96th %ile in Data Insights. Discover the unique methods and exam strategies that helped her excel in DI along with other sections for a balanced and high score.
Apr 3001:30 AM EDT
-02:30 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.
May 0111:00 AM PDT
-12:00 PM PDT
Free- full-length test + 15 concept videos + 150+ short videos + study plan!
May 0306:30 AM PDT
-08:30 AM PDT
Verbal trouble on GMAT? Fix it NOW! Join Sunita Singhvi for a focused webinar on actionable strategies to boost your Verbal score and take your performance to the next level.
23 May 2020, 06:58
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% (01:02) correct
27%
(01:10)
wrong
based on 423
sessions
History
Date
Time
Result
Not Attempted Yet
In the figure above, what is the sum of the degree measures of the marked angles?
(1) The two overlapping triangles are equilateral.
(2) The two overlapping triangles have equal perimeters.
DS21268
Attachment:
1.png [ 9.6 KiB | Viewed 10903 times ]
yashikaaggarwal
Senior Moderator - Masters Forum
Joined: 19 Jan 2020
Last visit: 29 Mar 2026
Posts: 3,088
Given Kudos: 1,510
Location: India
Schools: Cranfield (A) Warwick MiM "23 (M)
GPA: 4
WE:Analyst (Internet and New Media)
23 May 2020, 07:08
Kudos
Bookmarks
Let two triangles be ABC and DEF with A and D over lapping each other and the points they intersect be G and H
Statement 1.
The triangles are equilateral triangle.
Hence the tip of triangles is the quadrilateral form will be of 60° each.
Sum of angles inside any quadrilateral is 360.
ADGH is also a quadrilateral.
Angle A+D+G+H = 360
60+60+G+H=360
G+H=240
(Sufficient)
Statement 2:
Perimeter of both triangles are same. (Nothing mentioned regarding angles)
Not sufficient to determine whether they are equilateral triangle, scaler, right angled or any. (Not sufficient)
Answer is A
Posted from my mobile device
Statement 1.
The triangles are equilateral triangle.
Hence the tip of triangles is the quadrilateral form will be of 60° each.
Sum of angles inside any quadrilateral is 360.
ADGH is also a quadrilateral.
Angle A+D+G+H = 360
60+60+G+H=360
G+H=240
(Sufficient)
Statement 2:
Perimeter of both triangles are same. (Nothing mentioned regarding angles)
Not sufficient to determine whether they are equilateral triangle, scaler, right angled or any. (Not sufficient)
Answer is A
Posted from my mobile device
24 May 2020, 10:15
Kudos
Bookmarks
Bunuel
Target question: What is the sum of the degree measures of the marked angles?
Statement 1: The two overlapping triangles are equilateral.
All three angles in an equilateral triangle are 60°
So are overlapping triangles look like this:
From here, if we let x and y represent the two marked angles, we get the following:
Now let's examine the quadrilateral that exists in the intersection of the two triangles
Since angles in a triangle must add to 360°, we can write: 60° + x° + 60° + y° = 360°
Simplify: x° + y° + 120°= 360°
Solve to get: x° + y° = 240°
In other words, the sum of the marked angles = 240°
Since we can answer the target question with certainty, statement 1 is SUFFICIENT
Statement 2: The two overlapping triangles have equal perimeters.
This information is not sufficient.
Consider these two possible cases:
Case a: The two triangles are identical equilateral triangles.
In this case, we get the same diagram we examined and statement 1:
Here, the answer to the target question is the sum of the marked angles = 240°
Case b: One triangle is an equilateral triangle, and the other is a 30-60-90 triangle with the same perimeter.
We get:
Since angles in a triangle must add to 360°, we can write: 30° + x° + 60° + y° = 360°
Simplify: x° + y° + 90°= 360°
Solve to get: x° + y° = 270°
Since we cannot answer the target question with certainty, statement 2 is NOT SUFFICIENT
Answer: A
Cheers,
Brent
