Introduction of Trigonometry and its 6 Ratios
The word “trigonometry” is a Greek word. Its means “measurement of a triangle.” Therefore trigonometry is that branch of mathematics concerned with measuring the sides and angles of a plane triangle and investigating the various relations among them. Today the subject of trigonometry also includes another distinct branch that concerns itself with properties relations between and behavior of trigonometric functions. The importance of trigonometry will be immediately realized when its applications in solving the problem of mensuration, mechanics physics, surveying, and astronomy are encountered.
The branch of mathematics which deals with the study of triangles, their sides, and their angles are called Trigonometry. In short form, it is known as “trig.”
