Tips and Tricks: Coordinate Geometry

# Coordinate Geometry Tips and Tricks for Government Exams

## Introduction

Here are some tips, tricks, and shortcuts for Coordinate Geometry, a topic frequently featured in recruitment exams. Easily and efficiently learn these strategies for solving problems related to coordinate geometry, including areas, length of segments, and distance-time graphs.

### Type 1:  Coordinate Geometry Questions Tips and Tricks and Shortcuts for.

Q: Find the equation of straight line passing through (2, 3) and perpendicular to the line 3x + 2y + 4 = 0
(a) 2x – 3y + 5 = 0
(b) 2x + 3y + 5 = 0
(c) 2x – 3y – 5 = 0
(d) 2x + 3y – 5 = 0
Ans:
(a)
x1 = 2; y1 = 3
The given line is 3x + 2y + 4 = 0
Line perpendicular to it will have slope m = 2/3
Thus equation of line through (2, 3) and slope 2/3 = y - y1 = m(x - x1)

3y – 9 = 2x – 4
2x – 3y + 5 = 0
3y – 9 = 2x – 4
2x – 3y + 5 = 0

### Type 2: Tips Tricks and Shortcuts for In which quadrant does the point lie?

Q: In which quadrant does the point (-2, 3) lie?
Ans:
(b)
Solution:  The point is negative in the x axis and positive for the y axis, thus the point must lie in the 2nd quadrant.

### Type 3: Tips and Tricks  for Find length of the segment or coordinates

Q: Find the coordinate of the point which will divide the line joining the point (2, 3) and (3, 5) internally in the ratio 2:3?
(a) 2, 1
(b) 2, 5
(c) 12/5, 19/5
(d) 12, 15/19
Ans:
(c)
We know that,

x = 12/5

y = 19/5
Therefore, (x, y) = 12/5, 19/5

### Type 4: Tips Tricks and Shortcuts for Area of the Triangle in Coordinate Geometry

Q: Find the area of the triangle formed by the vertices (1, 2), (3,5) and (-2, 3)
(a) 2.5
(b) 3.5
(c) 5.5
(d) 6
Ans:
(c)
Area of triangle

A = 5.5

The document Coordinate Geometry Tips and Tricks for Government Exams is a part of the SSC CGL Course Quantitative Aptitude for SSC CGL.
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## Quantitative Aptitude for SSC CGL

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