Geometry - Ch. 1: Basic Concepts (5 of 49) How Many Intersections are There? Example

Visit http://ilectureonline.com for more math and science lectures! In this video I will calculate and find the general equation of finding the number of intersections given a certain number of lines. For example, the number of intersection(s) given 2, 3, 4, 5,..., n number of lines. Next video in this series can be seen at: https://youtu.be/JRy7plbhilg