**Problem : **
What is the measure of the reference angle for a 310-degree angle?

**Problem : **
Which angle is complementary to its reference
angle?

**Problem : **
Which value is not equal to the others:
sin()
,
sin()
,
sin()
,
sin()
?

**Problem : **
Which angles are equal to their reference angles?

**Problem : **
What is the measure of the reference angle for an angle of
radians?

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