Assignment 1 - Math 3
Radian: An angle equal to another angle in the center of a circle with an arc that is equal in length to the radius.
Degrees: Another unit of measurement for angles. (Ex- 180˙ = a straight line or 90˙ = a right angle)
Initial Side: A straight line that has a point, which another straight line is rotated to make an angle.
Terminal Side: The left side ray, other half of the angle.
Coterminal Angle:Angles already in standard position and have a common terminal side.
Reference Angle: (in standard position) The smallest angle between the terminal side and the x-axis.
Unit Circle: a circle with the radius of one.
Trig Ratios: Special measurements of a right triangle