AS/A2 Pure 2 Pure 3

P1 Topic 3: Trigonometry
How to convert degrees to radians
Use the interactive display. Change the value of the angle in degrees and the this will be converted to radians.

Summary Radians and degrees are two alternative units for measuring angle. There are 360 degrees or 2p radians in a full turn. In other words: 360 degrees = 2p radians therefore 1 degree = p/180 radians and 1 radian = 180/p degrees The radian measure is used at advanced level and beyond in mathematics through out calculus (differentiation and integration). This page uses HotEqn.