Description
🔍 Explore
Tour the unit circle to see how angles connect directly to sine, cosine, and tangent. Drag a point around the circle, switch between degrees and radians, and watch right triangles form.
🎮 Try It
• Drag the point around the circle and watch the red and blue coordinates update with the angle.
• Select sin, cos, or tan to highlight the specific geometric length that represents each trigonometric ratio.
• Check Special angles to snap to key reference angles like 30°, 45°, 60°, and 90°.
🎯 Your Mission
Rotate the angle around the circle to find all the positions where sine equals exactly 0, and note what cosine equals at those points.
🌍 Real-World Connection
Video game programmers use sine and cosine functions to calculate the smooth circular turning of vehicles and rotating character animations on screen.