Math Chapter 4.1 Part 10 br Lesson#10 br Ratio Formula br Question No. 2 br How to remember the concept of formula? br Now you are able to solve problem # 2,3,5,8,13,14,15 and 18 of Exercise 4.1 br ----------------------------------- br Q.2. Find in each of the following: br (i) The distance between the two given points br (II) midpoint of the line segment joining the two points br chapter No 4 br Introduction to Analytical Geometry br Exercise No 4.