🔍 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.
The views expressed in the simulations here are those of the contributor and don’t necessarily represent the views of Pandai.