Presentation on theme: "5.2 Circles and Sine Ratio. Angles on a Grid Initial Arm Terminal Arm Terminal Point Coterminal Angle."— Presentation transcript:
5.2 Circles and Sine Ratio
Angles on a Grid Initial Arm Terminal Arm Terminal Point Coterminal Angle
Find Coterminal Angles 75° 120°
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)
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.