Ans: To find the area of a triangle whose vertices are given, you use the formula: ½ [x1 ( y2 - y3) + x2 (y3 - y1) + x3 (y1 - y2)], where the coordinates of the three vertices are (x1, y1), (x2, y2), and (x3, y3). By applying the values of the coordinates in the formula given above, you can easily calculate the area of a given triangle. Get your hands on Vedantu’s NCERT Solutions of Exercise 7.3 of Chapter 7 of Class 10 Maths for complete solutions.