Purple Line Segment

This example demonstrates how to draw and analyze a purple line segment in three-dimensional space. It involves core mathematical concepts such as line segments, means, congruence, trigonometric functions, integers, and 3D vectors. The construction uses the Segment command to create objects like a, b, A, B, C, D, E, F, f, g, h, i, solved2. It is suitable for high school and above students studying 3D geometry and vector mathematics.