College Geometry Online, eLearning

Online Geometry: Classical Theorems of Euclidean Geometry - Table of Content

Classical Theorems - Page 2

Geometry Problems 151-160

Euler's Polyhedron Theorem

Euler's Polyhedron Theorem

Pascal's Mystic Hexagram Theorem Proof

Pappus Theorem

Pappus Theorem. Dynamic Geometry.
Step-by-Step construction, Manipulation, and animation.

Apollonius' Tangency Problem for Three Circles Illustration with animation and sound.

Feuerbach Point Theorems
 

Feuerbach Points and Nine-Point Circle with interactive animation, manipulation, and step-by-step construction.

Angle between two Simson Lines. Proof with animation.
 

Simson Line. A proof of Simson line with animation.

Interactive Simson Line

Interactive Simson Line. Dynamic Geometry.
Step-by-Step construction, Manipulation, and animation.

Lune of Hippocrates Index 

Lune of Hippocrates 4: Circle Areas and Right 

Hippocrates and Squaring the Circle
 

Stewart Theorem

Stewart Theorem Triangle and a cevian.

Viviani's theorem I

Viviani's Theorem, Problem 221. Viviani's theorem, Equilateral triangle, Interior point, Distances.

Eyeball Theorem: Animated Angle to Geometry Study.

Blanchet Theorem

Sawayama -Thebault's theorem

Routh's theorem index

Routh's Theorem - Index
Triangle, Cevians, Area, Ratio.
 

Parallelogram with Squares theorem Thébault's Theorem.
 

Johnson: Intersecting circles

Johnson's Theorem, Intersecting circles.
HTML5 Animation
Adobe Flash Animation

Varignon and Wittenbauer theorems. Quadrilateral: midpoints and trisection points of the edges.

 

Bottema Theorem. Elearning.

Bottema's Theorem:
Triangle and Squares with Interactive Geometry Software
Step-by-Step construction, Manipulation, and animation.

Morley's Theorem

Morley's Theorem. Introduction with animation. Triangle + Trisectors = Equilateral triangle.

Monge & d'Alembert Three Circles Theorem II with Dynamic Geometry You can alter the geometric construction dynamically in order to test and prove (or disproved) conjectures and gain mathematical insight that is less readily available with static drawings by hand. Requires Java Plug-in 1.3 or higher. Please be patient while the applet loads on your computer. If you are using a dial-up connection, it may take a few minutes but is well worth the wait. Cabri, GSP, Cinderella, C.a.R.

Monge & d'Alembert Three Circles Theorem I with Dynamic Geometry You can alter the geometric construction dynamically in order to test and prove (or disproved) conjectures and gain mathematical insight that is less readily available with static drawings by hand. Requires Java Plug-in 1.3 or higher. Please be patient while the applet loads on your computer. If you are using a dial-up connection, it may take a few minutes but is well worth the wait. Cabri, GSP, Cinderella, C.a.R.

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