The basic principle of trigonometry is that there are mathematical relationships between the sides and angles of a triangle.
The study of triangles: its sides and angles.
They are: opposite, adjacent and hypotenuse sides for a right angle triangle
Trigonometry is the study of the relationships between the sides and the angles of triangles and with the trigonometric functions, which describe those relationships.
Hipparchus is the father of trigonometry and he was a Greek astronomer who lived between 190-120 B.C. He is considered as the father of trigonometry, a branch of mathematics which studies the angles of sides of triangles. :)
Hipparchus is considered as the father of trigonometry. he was the one who found the relation between angles of a triangle and its lengths of sides. this relation has developed into an entirely new branch in mathematics as trigonometry. so, one might as well say that he 'made' trigonometry.
Use trigonometry
You could measure the sides of a shape and use trigonometry.
From the Greek: tri (3) gonos (sides) metros (measure)
The study of the ratios of the sides and angles of triangles in the same plane.
No it is the study of how the sides and angles of a triangle are related to each other
It is used to find measures of angles and lengths of sides in triangles.