Question

The reference angle if Q=135° is:

Answer 1

Answer:

45° angle is the correct answer

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

45° angle

You can see that the terminal side of the 135° angle and the x-axis form a 45° angle (this is because the two angles must add up to 180°). This 45° angle, shown in red, is the reference angle for 135°.