Trigonometry: Unit Circle
Test your knowledge of the unit circle — the radius-1 circle that makes sine and cosine values visual and intuitive across all angles.
Questions cover coordinates at key angles, quadrant signs for sine and cosine, converting degrees to radians, and reciprocal functions like cosecant.
Once the unit circle clicks, trig identities stop feeling like memorization — see how far along you are.
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Sample questions3 of 13 shown
Q1
What is the radius of the unit circle?
Q2
On the unit circle, at angle 0°, what are the coordinates of the point?
Q3
What is cos(90°) on the unit circle?
What This Quiz Covers
- Coordinates at key angles (0°, 90°, 180°, 270°)
- Sine and cosine sign by quadrant
- Converting degrees to radians
- The unit circle equation
- Reciprocal functions: csc, sec, cot
- Tangent values on the unit circle
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