Square Root Part 3

This example demonstrates 3D vectors, isosceles triangles, square properties, orthocenters, and special points in space geometry. Key math concepts include 3D vectors, isosceles triangle properties, square construction, orthocenters, and surface area calculations. GeoGebra commands like TableText and objects A, B, pic1, O, X, Z, text1 are used for construction and labeling. Suitable for high school and above students learning 3D geometry and vector applications.