# Coordinate Geometry | NCERT Class 10 Maths

The introduction part of this chapter covers the revision of basic concepts like the *x*-coordinate, or abscissa and y-coordinate, or ordinate. Next, the distance formula is presented (between any two points in the coordinate plane). This is followed by solved examples which students can study to gain a deeper understanding of the application of the distance formula. For the second exercise, the section formula is derived that tells us about the coordinates of the point P(*x, y*) which divides the line segment joining the points A(*x*_{1}, *y*_{1}) and B(*x*_{2}, *y*_{2}), internally, in the ratio *m*_{1}: *m*_{2}. Various applications of the section formula are presented in the form of solved examples. The last part of the chapter covers the calculation of the area of the triangle using the coordinates of its three vertices.