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5.2 Circles and Sine Ratio

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Angles on a Grid Initial Arm Terminal Arm Terminal Point Coterminal Angle

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Find Coterminal Angles 75° 120°

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Find Angle Find the radius of the circle and the measure of the angle in standard position for each terminal point (8,6) (-2,-5)

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Coordinates of a Terminal Point A terminal point is on the unit circle and it forms a 120° angle in standard position. – Find coordinates of the point – How does the coordinates of that point relate to primary trig ratios.

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Assignment Pg 245 #’s 1odd,2odd,3,4odd,7,10ab

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