Geometry Diagram: Right Triangle Inscribed in a Circle with Radius and Diameter #3699757 (License: Personal Use)

The diagram depicts a circle centered at O, with diameter OB passing horizontally through the center. Point A lies on the circumference, and a perpendicular line segment AC drops from A to the diameter at point C, forming right triangle OAC. This illustrates key concepts such as the relationship between radius, chord, and right angles in circle geometry.

Used in educational math content-especially geometry lessons on circle theorems, Pythagorean theorem applications, or trigonometric ratios in right triangles inscribed in circles. Matches user intent for visual aid in understanding Euclidean geometry proofs.