This video lecture from Geometry (F.Sc. second year Mathematics) covers: Question number 16 of exercise 4.1. In this question we find the circum center and radius of the circum circle of a triangle, where the coordinates of the vertices of the triangle are given. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.