Level 456 Level 458
Level 457

Reference Angles


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Sin 0°
0 (√0/2)
1
cos 0°
0
tan 0°
Sin 30°
1/2 (√1/2)
√3/2
cos 30°
√3/3
tan 30°
√2/2
sin 45°
√2/2
cos 45°
1
tan 45°
√3/2
sin 60°
1/2
cos 60°
√3
tan 60°
1
sin 90°
0
cos 90°
Undefined
Tan 90°
0
sin 180°
-1
cos 180°
0
tan 180°
-1
sin 270°
0
cos 270°
Undefined
Tan 270°
2π/3
π/3
3π/4
π/4
5π/6
π/6
7π/6
π/6
5π/4
π/4
4π/3
π/3
5π/3
π/3
7π/4
π/4
11π/6
π/6
1/2
sin π/6
sin π/4
√2 / 2
1/2
sin π/3
cos π/6
√3 / 2
cos π/4
√2 / 2
1/2
cos π/3
tan π/6
√3 / 3
1
tan π/4
√3
tan π/3
0
sin 0
1
cos 0
0
tan 0
1
sin π
0
cos π
Undefined
tan π
π/6
30⁰ = _______rad
π/4
45⁰ = _______rad
π/3
60⁰ = _______rad