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Updated on: 11 Aug 2019, 00:00
Originally posted by GMATBusters on 16 Apr 2018, 17:04.
Last edited by GMATBusters on 11 Aug 2019, 00:00, edited 1 time in total.
Last edited by GMATBusters on 11 Aug 2019, 00:00, edited 1 time in total.
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Hi Guys
GMAT is standardized test which is quite different from exams taken at school/undergraduate level.
It requires a lot of efforts to ace the test. In fact we need to act smartly, Regularity in studies is the basic key to success.
What I feel the most important strategy is to make error logs to remember what the mistakes committed earlier.
In fact trust me, If one can avoids the mistakes committed during the preparation in the real GMAT, one can easily get 700+.
Now onward, Whenever I come across any good concepts/ traps , I will post it here. this will serve as a error logs for me and for other GMAT aspirants.
you are also welcome to post your selected concepts/error/traps here.
(PS: It is not the exhaustive study notes/theory, but only errors/new concepts encountered)
GMAT is standardized test which is quite different from exams taken at school/undergraduate level.
It requires a lot of efforts to ace the test. In fact we need to act smartly, Regularity in studies is the basic key to success.
What I feel the most important strategy is to make error logs to remember what the mistakes committed earlier.
In fact trust me, If one can avoids the mistakes committed during the preparation in the real GMAT, one can easily get 700+.
Now onward, Whenever I come across any good concepts/ traps , I will post it here. this will serve as a error logs for me and for other GMAT aspirants.
you are also welcome to post your selected concepts/error/traps here.
(PS: It is not the exhaustive study notes/theory, but only errors/new concepts encountered)
16 Apr 2018, 17:12
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Key concept: In any Trapezium, the area of opposite triangles formed by intersection of diagonals and non parallel side are equal.
but the other 2 triangles with parallel sides are NOT equal, they would be equal in case of Parallelogram.
Question based on this concept: What is the area of triangle EBC?
(PS: Please note that the question can be done without this concept also, but sometimes we fall in traps/take longer time to solve. So, I personally like making and using these key concept)
but the other 2 triangles with parallel sides are NOT equal, they would be equal in case of Parallelogram.
Question based on this concept: What is the area of triangle EBC?
(PS: Please note that the question can be done without this concept also, but sometimes we fall in traps/take longer time to solve. So, I personally like making and using these key concept)
Attachments
WhatsApp Image 2018-04-15 at 10.33.47.jpeg [ 89.49 KiB | Viewed 6159 times ]
16 Apr 2018, 17:27
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This is a simple concept, but the question framed on these are generally tricky:
1) If \(a^2+b^2 =c^2\), it means the angle between a & b is 90 deg, hence the triangle is right.
2) If \(a^2+b^2 < c^2\), it means the angle between side a & b is obtuse, the triangle is obtuse.
3) If \(a^2+b^2 > c^2\), it means the angle between a & b is acute, but since other angle can be obtuse, the triangle cant be taken as acute.
How to decide Acute or obtuse angle in a triangle.jpg [ 129.75 KiB | Viewed 8618 times ]
Out of above three, third property is MOST IMPORTANT.
Please note that If \(a^2+b^2 > c^2\), it simply tells that angle between a and b is acute, it doesn't mean that the triangle is Acute angled triangle.
Example of Questions based on this concept:
1)Is triangle ABC with sides a, b and c acute angled?
2)Is triangle ABC obtuse angled?
1) If \(a^2+b^2 =c^2\), it means the angle between a & b is 90 deg, hence the triangle is right.
2) If \(a^2+b^2 < c^2\), it means the angle between side a & b is obtuse, the triangle is obtuse.
3) If \(a^2+b^2 > c^2\), it means the angle between a & b is acute, but since other angle can be obtuse, the triangle cant be taken as acute.
Attachment:
How to decide Acute or obtuse angle in a triangle.jpg [ 129.75 KiB | Viewed 8618 times ]
Out of above three, third property is MOST IMPORTANT.
Please note that If \(a^2+b^2 > c^2\), it simply tells that angle between a and b is acute, it doesn't mean that the triangle is Acute angled triangle.
Example of Questions based on this concept:
1)Is triangle ABC with sides a, b and c acute angled?
2)Is triangle ABC obtuse angled?
Here it is! Appreciate it 
