Trig Ratios sin·cos·tan
by Anonymous
Change the angle of a right triangle to see how sin, cos and tan are set by the ratios of its sides.
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About this app
Trig Ratios sin·cos·tan is an interactive middle-school math app for exploring how sine, cosine, and tangent depend on an angle in a right triangle. Change the angle to compare opposite, adjacent, and hypotenuse ratios, then use the unit circle to connect coordinates with (cos θ, sin θ). A special-angle section presents the exact side ratios for 30°, 45°, and 60° through guided missions.
Use cases
- Middle-school students learning trigonometric ratios
- Teachers demonstrating sin, cos, and tan visually
- Learners practicing angle-based math missions
- Students reviewing unit-circle coordinates and special angles
Features
- Interactive right-triangle view with adjustable angle θ
- Live sin, cos, and tan ratio explanations
- Unit-circle view showing coordinates as (cos θ, sin θ)
- Guided missions for target angles and coordinates
- Special-angle practice for 30°, 45°, and 60°
- Reset and next-mission controls