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5.2 Circles and Sine Ratio. Angles on a Grid Initial Arm Terminal Arm Terminal Point Coterminal Angle.

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Presentation on theme: "5.2 Circles and Sine Ratio. Angles on a Grid Initial Arm Terminal Arm Terminal Point Coterminal Angle."— Presentation transcript:

1 5.2 Circles and Sine Ratio

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

3 Find Coterminal Angles 75° 120°

4 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)

5 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.

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


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