Demonstration of Orthocenter

This example demonstrates the geometric properties and construction method of the orthocenter in a triangle. Key math concepts involved include triangles, perpendicular lines, intersection points, and area. The construction uses GeoGebra commands and objects like Polygon, OrthogonalLine, and Intersect, along with points A, B, C, t1, c, a, b, f, g, h, D. It is suitable for high school mathematics teaching and geometric construction learning, aiding in understanding special points and properties of triangles.