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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 | 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.

  3. Khan Academy | Khan Academy

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  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 - Formulas, Examples | Plane and Solid Geometry

    Geometry (from the Ancient Greek: geo- "earth", -metron "measurement") is a branch of mathematics, that is primarily concerned with the shapes and sizes of the objects, their relative …

  6. Geometry -- from Wolfram MathWorld

    Dec 22, 2025 · Geometry is the study of figures in a space of a given number of dimensions and of a given type.

  7. GEOMETRY Definition & Meaning - Merriam-Webster

    The meaning of GEOMETRY is a branch of mathematics that deals with the measurement, properties, and relationships of points, lines, angles, surfaces, and solids; broadly : the study …

  8. Geometry lessons - School Yourself

    Essential stuff for describing the world around you. 1. Lines and angles. 2. Related angles. What about angles bigger than 360 degrees? 3. Triangles. See if it's really true, and then prove it! …

  9. What Is Geometry in Math? Definition, Solved Examples, Facts

    Geometry is a branch of mathematics that deals with shapes, sizes, angles, and dimensions of objects. Explore 2D and 3D shapes, angles in geometry with examples!

  10. Outline of geometry - Wikipedia

    Geometry is a branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space. Geometry is one of the oldest mathematical sciences. …