Octahedron Geometry Diagram - Mathematical Polyhedron Illustration #1286002 (License: Personal Use)

This black-and-white line illustration depicts a regular octahedron-a Platonic solid with eight equilateral triangular faces, six vertices, and twelve edges-rendered in an antique scientific diagram style. Shading via parallel hatching and stippling emphasizes three-dimensional form and spatial orientation. The clean linework makes it suitable for textbooks, educational websites, or printable geometry worksheets.

Used in mathematics education, geometry tutorials, Wikipedia articles, or STEM curriculum pages where visual representation of polyhedra is needed; targets students, teachers, and enthusiasts seeking accurate, royalty-free diagrams.