Standard Position
The standard position is characterized by this:
The initial arm lies on the X axis facing right
An angle is formed when a ray is rotated about a fixed point called the vertex
The beginning ray is called the initial arm
The end of the angle is called the terminal arm
angles are refered to as
Positive or Negative Angles
The angle can be positive or negative depending on what side the terminal arm twists in relation to the initial arm. positive angles are formed from counter-clockwise rotations negative angles are formed from clockwise rotations
Coterminal Angles
Angles that share the same terminal arm and the same initial arm. The easiest way to get these is by adding or subtracting