Orthocenter of a Triangle: Construction and Properties (Part 1)

This GeoGebra applet demonstrates the geometric construction and fundamental properties of the orthocenter of a triangle. By constructing the altitudes from each vertex to the opposite side, it visually illustrates the theorem that the three altitudes intersect at a single point, the orthocenter (H). Utilizing basic geometric commands such as segments, orthogonal lines, and intersections, it helps