Chapter 6.1 Measurement of Angles
clockwise direction, negative angle
counterclockwise direction, positive angle
quadrants I, II, III, and IV
unit circle 2
Degree measurement: is the measure of the angle formed
by 360 of one complete ____________. One complete
____________ measures _____.
Radian measurement: is the measure of the __________
angle subtended by an arc __________ in length to the
radius of the circle.
Note 1: In a _______ circle:
360 degrees radians
x degree radians
Converting Degrees to Radians: Let x be the number of
degrees, then f (x) x radians.
Converting Radians to Degrees: Let x be the number of
radians, then f (x) x degrees.
Copy From Text:
p. 305 about degree – radian relationship 3
Chapter 6.2 The Trigonometric Functions
DIFFERENT FROM TEXT Trigonometric functions:
Let (x, y) (0,0) be a ________ on the circle with radius
r , then the angle is as in the diagram and
sine function: sin opposite
cosine function: cos
tangent function: tan adjacent
cosecant function: csc
secant function: sec
cotangent function: cot
Note 2: Set your calculator to the correct ________ when
working with trigonometric ____________. 4
Note 3: T