Trigonometry is basically a science of measuring angles. An angle is in fact the pivot around which the whole trigonometry revolves. In general, there are three systems for measuring angles: (i) Sexagesimal System (ii) Centesimal System (iii) Circular System. For more details use the links given below:
Click here → Study Material of Measurement of Angles
Exercises of Measurement of Angles – Class 11th R.D. Sharma Solutions |
| Measurement of Angles Exercise 4.1 |