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Outline

  1. Spherical figures
    1. A sphere
    2. Points
    3. Great circle
    4. Spherical angle
    5. Spherical segment
    6. Spherical diangle
    7. Spherical triangle
    8. Spherical circle

    Spherical figures

    Author:Hannu Korhonen, GeoGebra Ambassador
    Topic:Geometry, Sphere
    The geometry on a sphere is a little bit different as the geometry of our usual environment. Many thanks to Lénárt István and his geometry course in Finland 2003 for understanding these ideas.
    Spherical figures

    Table of Contents

    • A sphere

      • Sphere
    • Points

      • Spherical point
    • Great circle

      • Great circle
      • Great circles
    • Spherical angle

      • Spherical angle
    • Spherical segment

      • Spherical segment
    • Spherical diangle

      • Spherical diangle 1
      • Spherical diangle 2
    • Spherical triangle

      • Spherical triangle
      • Spherical triangle 2
    • Spherical circle

      • Spherical circle
    Next
    Sphere

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