Right Triangle Trigonometry Diagram - Sine, Cosine, Tangent Relationships #295650 (License: Personal Use)

This diagram illustrates a right-angled triangle with the acute angle θ at the base, where side 'a' is adjacent to θ, side 'o' is opposite θ, and 'h' is the hypotenuse. It serves as the foundational visual for defining sin(θ) = o/h, cos(θ) = a/h, and tan(θ) = o/a in introductory trigonometry. The clean labeling supports clear pedagogical use in textbooks, online lessons, and interactive math tools.

Used in educational web pages, math tutorials, Khan Academy-style lessons, or STEM curriculum sites to teach basic trigonometric ratios; matches user intent for learning or reviewing SOH-CAH-TOA concepts.