This video lecture from Vectors (F.Sc. second year Mathematics) covers: Question 7-8 of exercise 7.3. In these questions we show that midpoint of hypotenuse of a right triangle is equidistance from its vertices, and we also prove that the perpendicular bisector of sides of a triangle is concurrent. 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.