Coordinate Geometry G10

Imagine you have a sports event at your school. To conduct the running race, the rectangular school ground is divided into ten columns, each of 1m. Each column is separated by its adjacent ones with a line made up of chalk powder. On similar lines, there are 10 rows made, each of 1m, to see the distance covered by the runner. One participant covers 1/4th distance and posts a green flag, while the other covers 1/5th and posts a red flag. How will you calculate the distance between these two flags? Baffled? Such problems can be solved effortlessly with the help of “Coordinate Geometry”. In this chapter, you will learn how to find the distance between the two points whose coordinates are given, and to find the area of the triangle formed by three given points. You will also study how to find the coordinates of the point which divides a line segment joining two given points in a given ratio. So let's begin!