16
QuizMultiple Choice

The Unit Circle

Question 16 • CREDIT RE-SEAT MNPS Integrated Math III IC S2 26-27

What is the reference angle for a 240° angle?

Answer
A
30°
B
60°
C
180°
D
270°

Explanation

A 240° angle lies in Quadrant III, where the reference angle is found by subtracting 180° from the angle. So 240° − 180° = 60°. The reference angle is 60°, choice B.

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