Find the Reference Angle 210

Problem

210

Solution

1. Identify the quadrant in which the given angle θ=210 lies. Since 180<210<270 the angle is in Quadrant III.

2. Apply the formula for the reference angle θ′ in Quadrant III, which is θ′=θ−180

3. Substitute the value of the angle into the formula: θ′=210−180

4. Subtract the values to find the reference angle.

Final Answer

θ′=30

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