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Geometry - Importance of Figures in Problem Solving vs Data Sufficiency


Many test takers, though good at Math find Data Sufficiency difficult. They are much more used to the straight forward Problem Solving pattern. The very principles behind the two question types are ve...

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Geometry - Using Slope Concept Effectively


It is not sufficient to know how you calculate the slope of a line. Slope gives the units by which the y co-ordinate changes and the direction in which it changes with 1 unit chang

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Geometry - A Tough Irregular Polygon Question


Today, we will look at a relatively difficult polygon question. We would like to remind you here that the concepts tested are still very simple - though we wouldn’t like to give away just exactly whic...

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Geometry - Diagonals of an n-Sided Polygon


How do we find the number of diagonals an n sided polygon has? How many diagonals are subtended by each vertex? What happens when one or more vertices do not make diagonals? How t

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Geometry - When Should We Ignore the Diagram Given?


Normally, people will say - Never! But we beg to differ. Often, you would have read in our posts or heard us talk about the importance of diagrams in many Quant questions  - Co-ordinate geometry

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Geometry - A Tough Triangles Question


We aim to solve all our Geometry questions without the use of trigonometry because many standardised tests do not require it.  This question makes us feel that we need trigonometry

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Geometry - Draw a Line from its Equation


The one thing that I would suggest to increase speed in Co-ordinate Geometry and Algebra is Graphs. Learn how to draw a line from its equation in under ten seconds

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Geometry - Beware of the Sneaky Options!


Test takers often ask for tips and short cuts to cut the work. So the question writer might want to award the test taker who pays attention to details and puts in the required effort.

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Geometry - Useful Properties of Pythagorean Triples


We discuss a few useful properties of primitive Pythagorean triples. A primitive Pythagorean triple is one in which the sides, a, b and c are co-prime. So, for example, (3, 4, 5) is a primitive Pythag...

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