Shadows in Descriptive Geometry

Explains the intersection of a line and a plane using auxiliary planes and projectants.

Explores projection planes, angles, and traces in geometric descriptive, emphasizing perpendicularity and parallelism in planes.

Explores sphere properties, projections, and symmetry, including apparent contours and missing projections of points.

Explores the properties and sections of a sphere, including symmetry, tangent planes, and circle projections.

Explores lines of slope in descriptive geometry, analyzing their properties and relationships within a plane through sketches and examples.