Unit Circle Explorer

Interactive unit circle — explore sine, cosine, tangent, common angles, and quadrant relationships with live visualization

How to Use the Unit Circle Explorer

1. Drag the angle slider or enter a value directly in the degrees/radians input to rotate the angle indicator on the circle
2. Observe the cos(θ) (green) and sin(θ) (red) projections on the axes — watch how they change as the angle rotates through all four quadrants
3. Click any row in the Common Angles table to jump to that angle. Enable Animate to see the angle rotate continuously. Switch between degree and radian input modes

Enable JavaScript to use these tools.