This video lecture from Geometry (F.Sc. second year Mathematics) covers: Question number 2b of exercise 4.4. In this question we have to find the equation of a line parallelperpendicular to the given line and passing through the intersection of two given lines. 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.