TRIG Reference Angles 3
60°
120°
135°
150°
210°
30° is a reference angle for:
225°
240°
300°
315°
330°
30°
120°
135°
150°
210°
60° is a reference angle for:
225°
240°
300°
315°
330°
60°
120°
135°
150°
210°
45° is a reference angle for:
225°
240°
300°
315°
330°
π/3
/3
/4
/6
/6
π/6 is a reference angle for:
/4
/3
/3
11π/6
/4
π/6
/3
/4
/6
/6
π/3 is a reference angle for:
/4
/3
/3
11π/6
/4
π/3
/3
/4
/6
/6
π/4 is a reference angle for:
/4
/3
/3
11π/6
/4
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