Coordinate Geometry Basics

This cheat sheet covers the high school math concept – Coordinate Geometry Basics.

Coordinate Geometry

This cheat sheet builds the foundation of coordinate geometry basics. A strong command over the formulae / concepts covered in this sheet is a must for understanding the chapters / topics that follow, i.e. Straight Line, Circle, Parabola, Ellipse and Hyperbola.

Some of the formulae covered in this cheat sheet (e.g. Distance Formula and Section Formula) are extendable to 3D Geometry too. (A cheat sheet on 3D Geometry is also available on this website.)

The formulae / concepts covered here will also be useful during your study of Calculus, especially when graphs are in focus.

This one page PDF covers summarised theory and the most important formulas related to the concept. Keep it handy while you’re revising the concept, especially before an exam.

The topics included in this cheat sheet are:

  • Cartesian Coordinate System
  • Distance Formula
  • Section Formula – Internal Division, External Division, Mid-Point
  • Centers in a Triangle – Centroid, Incentre, Excentre
  • Area of a Triangle
  • Area of a Polygon
  • Collinearity of Points

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