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1. Plane (geometry): In Euclidean geometry, a plane is an abstract concept that models the common notion of a flat surface — without depressions, protrusions, holes and a boundary — that for any two of its points entirely contains the straight line joining them. Assuming ... (Geometry) [100%] 2023-06-10
2. Plane (geometry): In mathematics, a plane is a flat, two-dimensional surface that extends indefinitely. A plane is the two-dimensional analogue of a point (zero dimensions), a line (one dimension) and three-dimensional space. (Geometry) [100%] 2023-09-25 [Euclidean plane geometry] [Mathematical concepts]...
3. Plane geometry: Plane geometry is a branch of mathematics dealing with geometry on a flat surface, typically called the Euclidean Plane. Any point on such a plane can be described using just two coordinates, referred to as the "horizontal" and "vertical" components. [100%] 2023-06-29 [Geometry]
4. Octant (plane geometry): In plane geometry, octant is a circular sector obtained by division of the full circle into 8 equal parts, hence the name. It is a sector with the central angle of 45°. (Plane geometry) [81%] 2023-12-13 [Geometric shapes]
5. Normal plane (geometry): A normal plane is any plane containing the normal vector of a surface at a particular point. The normal plane also refers to the plane that is perpendicular to the tangent vector of a space curve; (this plane also contains ... (Geometry) [81%] 2023-12-12 [Geometrical optics] [Surfaces]...
6. Quadrant (plane geometry): The axes of a two-dimensional Cartesian system divide the plane into four infinite regions, called quadrants, each bounded by two half-axes. The axes themselves are, in general, not part of the respective quadrants. (Plane geometry) [81%] 2025-07-05 [Euclidean plane geometry]
7. Plane (geometry)#Approval: Please create the talk page and save the page. (Geometry) [81%] 2025-07-05
8. Affine plane (incidence geometry): In geometry, an affine plane is a system of points and lines that satisfy the following axioms: In an affine plane, two lines are called parallel if they are equal or disjoint. Using this definition, Playfair's axiom above can ... (Incidence geometry) [70%] 2023-11-11 [Incidence geometry]
9. Plane (geometry)#Related Articles: A list of Citizendium articles, and planned articles, about Plane (geometry). See also changes related to Plane (geometry), or pages that link to Plane (geometry) or to this page or whose text contains "Plane (geometry)". Contents * 1 Parent topics * 2 ... (Geometry) [70%] 2025-07-05
10. Plane (geometry)#Citable Version: In Euclidean geometry, a plane is an abstract concept that models the common notion of a flat surface — without depressions, protrusions, holes and a boundary — that for any two of its points entirely contains the straight line joining them. Assuming ... (Geometry) [70%] 2025-07-05
11. Combinatorial Geometry in the Plane: Combinatorial Geometry in the Plane is a book in discrete geometry. It was translated from a German-language book, Kombinatorische Geometrie in der Ebene, which its authors Hugo Hadwiger and Hans Debrunner published through the University of Geneva in 1960 ... [63%] 2023-09-25 [Discrete geometry] [Mathematics books]...
12. Combinatorial Geometry in the Plane: Combinatorial Geometry in the Plane is a book in discrete geometry. It was translated from a German-language book, Kombinatorische Geometrie in der Ebene, which its authors Hugo Hadwiger and Hans Debrunner published through the University of Geneva in 1960 ... [63%] 2025-07-05 [Discrete geometry] [Mathematics books]...