unit circle 4

📐 Interactive Unit Circle

Drag the point • Exact radical values • Radian labels • Quiz mode

θ = 45.0°

° rad

sin θ

√2/2

cos θ

√2/2

tan θ

1

📍 Point (cos θ, sin θ)

(√2/2, √2/2)

≈ (0.7071, 0.7071)

Quadrant

I

Reference Angle

45°

📝 Quiz Mode • Exact Values Score: 0/0

Click "New Question"

✨ Upgraded Features

• 🖱️ Drag the point on the circle, use slider, or type degrees/radians
• 📐 Pure exact values (√ symbols fixed, no encoding glitches)
• 🎯 Smart Quiz — tests sin/cos/tan exact values, score tracking
• 🌓 Enhanced Dark Mode with smooth transitions
• 📏 Responsive canvas + radian labels (π/6, π/4, etc.)
• 🔁 Toggle angle display (click on angle badge to swap deg/rad)