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  1. Geometry (all content) - Khan Academy

    Geometry (all content) Unit 1: Lines Lines, line segments, and rays Measuring segments Parallel and perpendicular Points, lines, & planes Geometric definitions The golden ratio

  2. Geometry - Wikipedia

    Geometry[a][1] is a branch of mathematics concerned with properties of space such as the distance, shape, size, and relative position of figures. [2] Geometry is, along with arithmetic, one of the oldest …

  3. Geometry | Definition, History, Basics, Branches, & Facts | Britannica

    Geometry, the branch of mathematics concerned with the shape of individual objects, spatial relationships among various objects, and the properties of surrounding space.

  4. Geometry - Math is Fun

    Geometry is all about shapes and their properties. If you like playing with objects, or like drawing, then geometry is for you!

  5. Geometry -- from Wolfram MathWorld

    Dec 3, 2025 · Geometry is the study of figures in a space of a given number of dimensions and of a given type.

  6. Geometry - Math.net

    Geometry is a branch of mathematics that includes the study of shape, size, and other properties of figures. It is one of the oldest branches of mathematics and may have been used even in prehistoric …

  7. Geometry - Encyclopedia of Mathematics

    Jul 18, 2024 · Geometry studies spatial relationships and shapes, while ignoring other properties of real bodies (density, weight, colour, etc.). In its subsequent stages of development geometry also dealt …

  8. 4: GEOMETRY - Mathematics LibreTexts

    1 day ago · This page provides a comprehensive overview of fundamental geometric concepts, including properties of basic figures, calculations of perimeter, area, volume, and surface area. It introduces …

  9. Geometry - Formulas, Examples | Plane and Solid Geometry - Cuemath

    Two types of geometry are plane geometry and solid geometry. Plane geometry deals with two-dimensional shapes and planes (x-axis and y-axis), while solid geometry deals with three …

  10. Geometrie (alle Inhalte) | Mathematik | Khan Akademy

    Lerne alle Themen aus der Geometrie - Winkel, Formen, Transformationen, Beweise und mehr.