Lesson#4 What is sexagesimal system of angle measure? In sexagesimal system angle is measured in Degrees, Minutes and Seconds. * If terminal ray rotates in anticlockwise direction in such a way that it coincides initial ray, the angle then formed is said to be 360 degrees (360°). One Minute: 〖60〗^th part of one degree is called one minute. Exercise No.9.1 Chapter No.9 Fundamentals of Trignometry maths part 1
