Exact Trig Ratios

Mastering the Unit Circle & Standard Angles

1 Core Visualizations

Interactive Viewer
Select a point on the circle

3 Exact Values Table

Angle $\sin \theta$ $\cos \theta$ $\tan \theta$

2 Interactive Hand Trick

90°
60°
45°
30°
0°
Select a point on the circle.
Sine = Fingers Below
$$\sin \theta = \dots$$
Cosine = Fingers Above
$$\cos \theta = \dots$$
Tangent = Below / Above
$$\tan \theta = \dots$$

4 Rapid Recall

Score: 0
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Pro tip: Use keys 1-4 to answer quickly