Orthogonality and Perpendicularity in Descriptive Geometry

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Explains the Theorem of Three Perpendiculars and shadow casting of points on planes.

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Explores the angle at the center and the power of a point relative to a circle, demonstrating key theorems and geometric concepts.

Explores spatial geometry problem-solving using Monge representation and projections.

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Covers defining a plane by its traces and determining its properties.

Explores elementary operations in geometry, including addition, subtraction, multiplication, and division of segments and angles.

Explores true angle magnitude, reflections, isometries, and symmetries in modern geometry, with practical CAD applications.

Covers curvature, osculating circles, and the evolute of plane curves, with examples and equations.

Explores vector and normal equations, covering lines, intersections, and distances in 2D and 3D geometry.

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Explores perpendicular lines and planes in descriptive geometry, focusing on orthogonality and intersection points.

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

Explores Euclid's first proposition, ancient symmetria, and Vitruvius' architectural figures.

Explores intersections of lines and medians in a square geometry context.

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