Question

trigonon means a triangle and the w
Hence, trigonometry means the science of measuring triar
Tanch ofinathematics which deals with the measurement
iangle and the problems allied with angles.
onsider a ray OA. If this ray rotates about its end point o ar
ey that the angle ZAOB has been generated.
Frus, an angle is considered as the figure obtained by rotating a gi
0
0
Fig. 10.1
e revolving ray is called the generating line of the a
led the initial side and the final position OB is called t
d​

Answer 1

Answer:

One way to measure an angle is in degrees. An angle created by one complete counterclockwise revolution measures 360°. One generated by one complete clockwise rotation is -360°. An angle may have a degree measure that is multiple of 360° or a fractional part of it.

Trigonometry is my favourite subject .