Right Triangle Diagram with Labeled Sides and Angles for Geometry Education #1396154 (License: Personal Use)

This black-and-white line drawing depicts a right triangle ABC with the right angle at vertex C. Side a is vertical (opposite angle A), side b is horizontal (adjacent to angle A), and side c is the hypotenuse connecting vertices A and B. The labeling follows conventional trigonometric notation used in geometry and physics education.

Used in educational web pages, math tutorials, or Khan Academy-style lessons to explain the Pythagorean theorem, sine/cosine/tangent ratios, and triangle properties. Matches user intent for visual learning, homework help, or quick reference.