Trigonometry Tricks – 3
Sine and Cosine Rules
See the image above and mug the formulas thoroughly. Sin and cosine rules are important in trigonometry and can help you in solving some complex questions.
1)
The...
Trigonometry Tricks – 2
This article covers some concepts that are taught in classes 11th and 12th, and hence new for arts/commerce candidates.
Few things which the above figure represents :
There are 4 quadrants...
Trigonometry Tricks – 1
Trigonometry is yet another scoring section of CGL. Most of the questions can be solved with jugaad.
Just like Algebra, where we assumed the values of variables, in trigonometry we will assume the...
Circle : Radius | Diameter | Area | Sector | Segment
Circle : Radius | Diameter | Area | Sector | Segment
Radius (of a circle)
From Latin: radius "staff, spoke of a wheel"
1. A line from the center of a circle to a point...
Circle & Its Secant
Circle & Its Secant
Secant
From Latin: secare "to cut"
A line that intersects a curve or circle at two points
.
Try this Drag either orange dot. The blue line will always remain a secant to...
Circle and its chords
Circle and its chords
Circle
From Latin: circus - "ring, a round arena"
A line forming a closed loop, every point on which is a fixed distance from a center point.
Try this Drag an orange...
Triangle : Law Of Sines & Cosines
Triangle : Law Of Sines & Cosines
What does 'solving the triangle' mean?
It means that if we are given some facts about a triangle, we can find some or all of the...
Triangle : Congruency and Similarity
Triangle : Congruency and Similarity
Definition: Triangles are congruent when all corresponding sides and interior angles are congruent. The triangles will have the same shape and size, but one may be a mirror image of...
Geometry Tricks – 3 [Construction]
You can tackle many tricky geometry questions with a single word 'Construction'. Yes, just precisely draw the diagram as asked in the question and manually measure the unknown side/angle that has...
Circle & Its Tangent
Circle & Its Tangent
Tangent
From Latin: tangere "to touch,"
A line that contacts an arc or circle at only one point.
Try this Drag the orange dot. The blue line will always remain a tangent...
