This video lecture from Fundamentals of Trigonometry (F.Sc. first year Mathematics) covers: Question numbers 1-7 of exercise 9.1. In these questions we convert the angles from sexagesimal to radians and vice versa. 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.