adjacent opposite hypotenuse
Angles were known before trigonometry. Trigonometry was the study of angles and their relationship to shapes.
Angles in trigonometry are the same as any other angles. They are a measure of the separation between two lines which meet at a point.
Trigonometry is used to find the properties of triangles and Pythagoras' theorem is used to find the lengths and angles of right angle triangles.
In geometry, angles are studied mostly in relation to each other. In Trigonometry, angles are studied in relation to side lengths and triangles.
Geometry is the study of spatial properties (shapes, sizes, etc.), while trigonometry is the study of triangles and the relationships between angles and lengths.
acute, Right, and obtuse
by calculating the angles
"IS" not "are"! The numerical study of angles and their functions.
The basic principle of trigonometry is that there are mathematical relationships between the sides and angles of a triangle.
Two types of trigonometry are recognized: planar and spherical. Planar is 2-dimensional, while spherical is 3-dimensional. Though these are different fields, spherical trigonometry is really just an application of planar trigonometry in several planes.
acute,right,obtuse