3. Sketching Principal Coterminal Reference anglesNov 25.notebook 1 November 25, 2015 Sketching Angles and the Cartesian Plane 6 5 4 3 2 1 0 1 2 3 4 5 6 6 5 4 3 2 1 1 2 3 4 5 6 x y 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) 6 5 4 3 2 1 0 1 2 3 4 5 6 6 5 4 3 2 1 1 2 3 4 5 6 x y 6 5 4 3 2 1 0 1 2 3 4 5 6 6 5 4 3 2 1 1 2 3 4 5 6 x y