Main Lines of a Plane: Sketch and Properties

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

Explores intersections between lines and planes, parallel planes, and relative positions of lines and planes.

Covers the concept of finding the distance between two lines in a plane.

Introduces Euclidean elements, explores infinity uniqueness, parallel lines, and different geometries like Euclidean, hyperbolic, and spherical.

Explores affinity in geometry, segment construction, ellipses, and circle projections.