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NAME: ______________________ Trigonometry:___________________________________________________ ____________________________________________________ Introduction to Angles of Rotation When an angle is drawn in standard position, the _____________side is ____________ on the _________________ x-axis and the vertex is the origin. The ________________ side can be anywhere and ______________ the angle. A ________________ angle is described by ______________ at the initial side and rotating _______________________ to the terminal side (angle ____). A ______________ angle is described by rotating _______________ (angle ___). Label: Depending upon the degree measure of the angle, the terminal side can land in one of the _________ quadrants. Angles can be ____________ than 360º by simply ________________ around the quadrants again. Try This: Name the quadrant of the terminal side. 1) 140o 7) 80o 2) 315o 8) -475o o 3) -168 9) -25o o 4) 475 10) 1030o 5) -340o 11) -1030o o 6) 670 12) -225o Coterminal Angles Definition: How do you find the coterminal angles to a given angle? Example: Name one positive and one negative coterminal angle of -425o. Try This: Find one positive and one negative coterminal angle for each angle below. 1) 140o 7) 80o 2) 315o 8) -475o 3) -168o 9) -25o 4) 475o 10) 1030o 5) -340o 11) -1030o 6) 670o 12) -225o