Author 
Message 
TAGS:

Hide Tags

Senior Manager
Joined: 08 Dec 2015
Posts: 302

What is REALLY important in Gmat geometry?
[#permalink]
Show Tags
01 May 2016, 10:54
Hi everyone,
A quick question here,
What should i study the most from geometry section? There seem to infinite formulas, tricks, polygons, relations between them etc etc etc. I suppose it's not necessary to memorize the dozens of formulas! So what is really important? Can someone pinpoint the relevant topics to study?
Thank you!



SVP
Joined: 06 Nov 2014
Posts: 1888

Re: What is REALLY important in Gmat geometry?
[#permalink]
Show Tags
02 May 2016, 01:51
iliavko wrote: Hi everyone,
A quick question here,
What should i study the most from geometry section? There seem to infinite formulas, tricks, polygons, relations between them etc etc etc. I suppose it's not necessary to memorize the dozens of formulas! So what is really important? Can someone pinpoint the relevant topics to study?
Thank you! Geometry is a vast section and takes a lot of effort to familiriaze yourself with certain topics. To start with, you can pay special attention to: 1. Circle and its properties 2. Triangles and their properties 3. Understand the sin, cos and tan rule 4. Squares and rectangles. You will find that most of the questions come from these topics. 1. Are you following any preparatory course/book? 2. Have you completed the OG questions? 3. Have you taken a full length mock CAT?



Math Expert
Joined: 02 Sep 2009
Posts: 47983

Re: What is REALLY important in Gmat geometry?
[#permalink]
Show Tags
02 May 2016, 03:38
OptimusPrepJanielle wrote: iliavko wrote: Hi everyone,
A quick question here,
What should i study the most from geometry section? There seem to infinite formulas, tricks, polygons, relations between them etc etc etc. I suppose it's not necessary to memorize the dozens of formulas! So what is really important? Can someone pinpoint the relevant topics to study?
Thank you! Geometry is a vast section and takes a lot of effort to familiriaze yourself with certain topics. To start with, you can pay special attention to: 1. Circle and its properties 2. Triangles and their properties 3. Understand the sin, cos and tan rule4. Squares and rectangles. You will find that most of the questions come from these topics. 1. Are you following any preparatory course/book? 2. Have you completed the OG questions? 3. Have you taken a full length mock CAT? Just to make clear: trigonometry is NOT tested on the GMAT. Each and every GMAT geometry question CAN be solved without trigonometric properties.
_________________
New to the Math Forum? Please read this: Ultimate GMAT Quantitative Megathread  All You Need for Quant  PLEASE READ AND FOLLOW: 12 Rules for Posting!!! Resources: GMAT Math Book  Triangles  Polygons  Coordinate Geometry  Factorials  Circles  Number Theory  Remainders; 8. Overlapping Sets  PDF of Math Book; 10. Remainders  GMAT Prep Software Analysis  SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS)  Tricky questions from previous years.
Collection of Questions: PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.
What are GMAT Club Tests? Extrahard Quant Tests with Brilliant Analytics



Current Student
Joined: 20 Mar 2014
Posts: 2643
Concentration: Finance, Strategy
GPA: 3.7
WE: Engineering (Aerospace and Defense)

Re: What is REALLY important in Gmat geometry?
[#permalink]
Show Tags
02 May 2016, 04:34
iliavko wrote: Hi everyone,
A quick question here,
What should i study the most from geometry section? There seem to infinite formulas, tricks, polygons, relations between them etc etc etc. I suppose it's not necessary to memorize the dozens of formulas! So what is really important? Can someone pinpoint the relevant topics to study?
Thank you! iliavko, what is your target GMAT quant score/ total score? I ask this as your posts seem to indicate that you dont want to put in the required amount of effort towards your GMAT preparation. We all have certain sections in GMAt that are difficult but make sure that we spend good amount of time in honing our skills in those areas. Just doing the requisite sections (that you can do COMFORTABLY) will never work in GMAT as it is an adaptive test and you may/may not even get questions from your strong areas. So this makes is very important to be good at all sections. If learning formulae for you is an issue, try to understand how a particular formula came into existence , what are the assumptions etc where you can apply that particular formula, what do you need to do if you cant remember that formula etc. Try to understand GMAT quant and there wont be any need for rote memorization. As OptimusPrepJanielle and Bunuel have mentioned above, stick to the topics above, feel free to post your questions (after checking that the same question has not been posted before) including what area(s) are you stumbling on in that question and the experts on this forum can definitely help you out.



Senior Manager
Joined: 08 Dec 2015
Posts: 302

What is REALLY important in Gmat geometry?
[#permalink]
Show Tags
02 May 2016, 12:15
Thank you for your replies! You see, if you follow the MGMAT books for example, then the info about geometry is obviously insufficient, but if you look at GmatClub math book's geometry section, you will find exotics like \(L=\sqrt{A^2+(\frac{b}{2^2})}\) (for triangles) So this is where I am in doubt. Should I study these formulas?.. But anyways, I am aiming for a 650, so I will try to learn as much as possible of course, but I guess these exotics will have to be left behind. Hopefully these are unlikely to be tested.



Manager
Joined: 27 Apr 2016
Posts: 93
Location: Brazil
GPA: 2.7
WE: Information Technology (Education)

Re: What is REALLY important in Gmat geometry?
[#permalink]
Show Tags
03 May 2016, 14:24
iliavko wrote: Thank you for your replies! You see, if you follow the MGMAT books for example, then the info about geometry is obviously insufficient, but if you look at GmatClub math book's geometry section, you will find exotics like \(L=\sqrt{A^2+(\frac{b}{2^2})}\) (for triangles) So this is where I am in doubt. Should I study these formulas?.. But anyways, I am aiming for a 650, so I will try to learn as much as possible of course, but I guess these exotics will have to be left behind. Hopefully these are unlikely to be tested. Based on my very limited experience (I've done only about 4 hundred quant questions altogether), you don't need to memorize any "exotics". These are the formulas I've needed to extensively practice with:  Circle perimeter and area  The sum of the internal angles of a given polygon  How to calculate the largest size of a triangle  Triangle, square and rectangle areas  The area of some 3D forms such as cubes and rectangles
_________________
The errant cosmos works against me!



Senior Manager
Joined: 08 Dec 2015
Posts: 302

Re: What is REALLY important in Gmat geometry?
[#permalink]
Show Tags
03 May 2016, 16:26
Thank you for the reply! What about coordinate geometry? Did you pay a lot of attention to it? Or it's like "mixture problems" so you can go without it? (and guess in case you see that one question on the entire GMAT)



Manager
Joined: 27 Apr 2016
Posts: 93
Location: Brazil
GPA: 2.7
WE: Information Technology (Education)

Re: What is REALLY important in Gmat geometry?
[#permalink]
Show Tags
03 May 2016, 19:10
iliavko wrote: Thank you for the reply! What about coordinate geometry? Did you pay a lot of attention to it? Or it's like "mixture problems" so you can go without it? (and guess in case you see that one question on the entire GMAT) As for coordinate geometry I'd say it is even more basic, but you need to have a very clear understanding of the following topics:  The concept of slope and, on rare occasions, maybe the formula representing it  Difference between a line and a segment, can't mess up those concepts  x/y intersections  Dont make assumptions based on the alphabetical order of coordinate aliases I'm practicing with the official GMATPrep software and question packs, and I can tell you the xyplane is present in not more than 5% of all quant section questions. I would assume that same ratio on Test Day (I haven't taken it yet) but who knows?
_________________
The errant cosmos works against me!



Veritas Prep GMAT Instructor
Joined: 16 Oct 2010
Posts: 8190
Location: Pune, India

Re: What is REALLY important in Gmat geometry?
[#permalink]
Show Tags
05 May 2016, 21:12
iliavko wrote: Thank you for the reply! What about coordinate geometry? Did you pay a lot of attention to it? Or it's like "mixture problems" so you can go without it? (and guess in case you see that one question on the entire GMAT) Coordinate geometry is extremely conceptual. Understand points, lines, slopes, intercepts and quadrants and you can solve most questions easily. The other topics in geometry are: Parallel lines Triangles  especially right triangles Similar triangles Polygons Circles 3D figures  volume, surface area etc There are a few basic formulas/concepts in each topic (about 34) and reviewing those is enough to solve most geometry questions. Also, note that you may choose to ignore "mixture" questions but do not ignore the concept of weighted averages.
_________________
Karishma Veritas Prep GMAT Instructor
Save up to $1,000 on GMAT prep through 8/20! Learn more here >
GMAT selfstudy has never been more personalized or more fun. Try ORION Free!



Senior Manager
Joined: 08 Dec 2015
Posts: 302

Re: What is REALLY important in Gmat geometry?
[#permalink]
Show Tags
06 May 2016, 03:16
Thank you very much for your reply, Karishma! Regarding the W.Average concept, I have seen it tested on percentages, something I wasn't expecting, I've also read your blog about it, it's very useful! Today I will try to organize the percentage topic in my head.. Two weeks till the exam and I still get like 50% wrong! grr I hate percentages...



NonHuman User
Joined: 09 Sep 2013
Posts: 7759

Re: What is REALLY important in Gmat geometry?
[#permalink]
Show Tags
31 Jan 2018, 02:13
Hello from the GMAT Club BumpBot! Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up  doing my job. I think you may find it valuable (esp those replies with Kudos). Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
GMAT Books  GMAT Club Tests  Best Prices on GMAT Courses  GMAT Mobile App  Math Resources  Verbal Resources




Re: What is REALLY important in Gmat geometry? &nbs
[#permalink]
31 Jan 2018, 02:13






