The reference angle for 325 degrees is 35 degrees which is found by subtracting 325 from 360 since it is in the third quadrant.
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complementary angle.
Since the angle of 331⁰ is in the fourth quadrant, then the measure of its reference angle in the first quadrant is 360⁰ - 331⁰ = 29⁰ .
Sin(285) is a number, not an angle. The reference angle for 285 degrees is 285-360 = -75 degrees.
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353 degrees is a reflex angle