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Chapter 17 of 31
Revision Notes

Cartesian System of Coordinates

Kerala Board · Class 12 · Mathematics

Quick revision notes for Cartesian System of Coordinates — Kerala Board Class 12 Mathematics. Key concepts, formulas, and definitions for last-minute revision.

45 questions20 flashcards5 concepts

Key Topics to Revise

1

Coordinate System Fundamentals

  • Origin O(0,0) is the intersection of X-axis and Y-axis
  • Point P(x,y): x = abscissa (horizontal distance), y = ordinate (vertical distance)
  • Quadrant signs: I(+,+), II(-,+), III(-,-), IV(+,-)
2

Distance Formula and Applications

  • Distance formula derived using Pythagoras theorem
  • Always gives positive value regardless of point order
  • Used to prove geometric properties: equilateral, isosceles, right triangles
3

Section Formula and Midpoint

  • Internal division: Point lies between given points
  • External division: Point lies outside the line segment
  • Midpoint is special case of internal division in ratio 1:1
4

Area of Triangle using Coordinates

  • Area formula derived using coordinate geometry concepts
  • Always take absolute value for positive area
  • Can be expressed as determinant form for easy calculation

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Full Notes

Key Concepts

A system consisting of two perpendicularDistance between points P₁(x₁Internal divisionArea = ½|x₁(y₂Slope m = tan θ =

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Frequently Asked Questions

What are the important topics in Cartesian System of Coordinates for Kerala Board Class 12 Mathematics?

Cartesian System of Coordinates covers several key topics that are frequently asked in Kerala Board Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.

Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.