3. Sketching Principal Coterminal Reference anglesNov 25 ... · 3. Sketching Principal Coterminal...
Transcript of 3. Sketching Principal Coterminal Reference anglesNov 25 ... · 3. Sketching Principal Coterminal...
3. Sketching Principal Coterminal Reference anglesNov 25.notebook
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November 25, 2015Sketching Angles and the Cartesian Plane
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Principal Angle angle formed from Initial Arm to terminal arm
Note:
Note: All angles start on initial arm. Positive angles go
counterclockwise from inital arm.
Coterminal Angles
an angle that results in the same terminal arm of some Principal Angle as a result your trig properties will be the same.
Sketch and determine two coterminal angles given:
A)
B)
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3. Sketching Principal Coterminal Reference anglesNov 25.notebook
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November 25, 2015The reference angle= When determining trig values, thereference angle not principal angle determines how you
label your triangle
Sketch angle and determine the "reference" angle.
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B)
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Reference
Angles &
Quadrants
Homework:
Worksheets
Coterminal Angles
Angle Measure