Geometry

The following is a list of Geometry applets included in the above link.

  • Euclidean Geometry
    • This first collection of applets shows how to perform the following basic geometric constructions:
      • Equilateral triangle
      • Perpendicular bisector
      • Midpoint of two points
      • Bisecting an angle
      • Reflection of a point across a line
      • Perpendicular line
      • Projection of a point onto a line
      • Parallel line
      • Constructing a Square
      • Constructing a Golden Rectangle
      • Inversion of a point across a circle
      • Two Lines Tangent to a Circle
    • This next collection of applets demonstrates several fundamental constructions involving triangles, concluding with a few remarkable relationships between these constructions.
      • Centroid
      • Circumcenter
      • Orthocenter
      • Incenter
      • Euler’s line
      • Six Point Circle
      • Nine Point Circle
    • This next collection of applets considers a number of well known theorems of Euclidean geometry:
      • Morley’s Theorem
      • Simson’s Theorem
      • Johnson’s Theorem
      • Napolean’s Theorem
    • Use the Euclidean Toolbox Applet to further your understanding of Euclidean Geometry and discover your own theorems!
  • Hyperbolic Geometry
    • Use the Hyperbolic Geometry Toolbox to further your understanding of Hyperbolic Geometry and discover your own theorems!
  • Spherical Geometry
    • Use the Spherical Geometry Toolbox to further your understanding of Spherical Geometry and discover your own theorems!

© 2004 David P. Little
Unless otherwise stated, the above applets were written by David Little. They may be used without permission from the author for home and/or educational (non-profit) purposes only. Any other use must be approved by the author.