Intersection of Two Planes

This example demonstrates the intersection line of two spatial planes and its dynamic behavior. Key mathematical concepts include solid geometry, plane equations, vector cross product, and intersection operations. Construction highlights the use of GeoGebra commands like IntersectPath (for intersection calculation), LaTeX (for text display), and objects such as a_1,b_1,c_1,d_1,a_2,b_2,c_2,d_2 (defining planes), gl1 (line object), e_1,e_2,g (auxiliary points or lines), and Text1,Text2 (annotations). Suitable for high school solid geometry instruction, university introductory geometry courses, or mathematical modeling for beginners.