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  1. Geometry - Wikipedia

    Geometry is, along with arithmetic, one of the oldest branches of mathematics. A mathematician who works in the field of geometry is called a geometer.

  2. Geometry (all content) - Khan Academy

    Learn geometry—angles, shapes, transformations, proofs, and more.

  3. 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!

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

    Feb 27, 2026 · Geometry, the branch of mathematics concerned with the shape of individual objects, spatial relationships among various objects, and the properties of surrounding space.

  5. 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 …

  6. Geometry — Mathwords

    Geometry is the study of shapes, sizes, positions, and properties of space. It covers everything from basic angle relationships and triangle properties to circles, area, volume, and coordinate geometry. …

  7. 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 …

  8. GoGeometry - Unleash the Power of Geometry | Interactive Lessons ...

    4 days ago · GoGeometry.com offers free educational resources and over 1600 illustrated problems to help geometry students practice and learn.

  9. Geometry -- from Wolfram MathWorld

    Mar 11, 2026 · Geometry is the study of figures in a space of a given number of dimensions and of a given type.

  10. 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 …