Trigonometry Vocab Words
Brandon Carroll
Radians-
a unit of angle, equal to an angle at the center of a circle whose arc is equal in length to the radius
Degrees-
a unit of measurement of angles, one three-hundred-and-sixtieth of the circumference of a circle
Initial Side-
a stationary straight line that contains a point about which another straight line is rotated to form an angle
Terminal Side-
an angle is in standard position if its vertex is located at the origin and one ray is on the positive x-axis
Reference Angle-
the smallest angle between the terminal side and the x-axis
Trig Ratios (Sine, Cosine, Tangent, Secant, Cosecant, Cotangent)-
the six trigonometric ratios relate the sides of a right triangle to its angles