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Circles - Table of Content
(Page 2)
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GeoGebra,
Dynamic Geometry, Euclidean Egg, Step-by-Step Construction
HTML5 Animation for Tablets (iPad, Nexus) |
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Billiards and Geometry -
Index
Billiards Ball. |
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Lemoine Line Theorem,
Interactive illustration.
HTML5 Animation for iPad and Nexus |
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GeoGebra, Dynamic Geometry:
Lemoine Line
of a Triangle.
HTML5 Animation for Tablets (iPad, Nexus..) |
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GeoGebra, Dynamic Geometry:
Simson Line
of a Triangle.
HTML5 Animation for Tablets (iPad, Nexus..) |
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Lester Circle Theorem.
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Word
Cloud of Circle.
Visual Summary. |
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Circumcenter.
Index.
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Incenter of a triangle.
Index.
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Excenter.
Index.
Excircle, Exradius.
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GeoGebra, Dynamic Geometry:
Internal Feuerbach Point
HTML5 Animation for Tablets (iPad, Nexus..) |
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Soddy Circles and Descartes Theorem.
Three tangent circles,
Inscribed and Circumscribed Circles, Radii. |
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Mascheroni
construction with compass alone. Index
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Ptolemy's Theorems and Problems - Index. |
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Brahmagupta Theorem and Problems - Index
Brahmagupta (598–668) was an Indian mathematician and astronomer who discovered a neat formula for the area of a cyclic quadrilateral. |
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Tangential
or Circumscribed Quadrilateral
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Mascheroni construction: Find the center of a circle with compass alone.
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Mascheroni construction: Construct the circumcircle of
a triangle with compass alone.
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Euclid's Elements Book I, Proposition 3: Given two unequal straight lines, to cut off from the greater a straight line equal to the less |
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Euclid's Elements Book I, Proposition 2: To place at a given point (as an extremity) a straight line equal to a given straight line |
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Euclid's Elements Book I, Proposition 1:
On a given finite line to construct an equilateral triangle |
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Distance between the Incenter and the Centroid of a Triangle.
Formula in terms of the sides a,b,c. |
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Distances between Triangle Centers
Index.
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Tangential or Circumscribed Quadrilateral:
Diagonals, Inradii Theorem. |
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Geometric Art: Isolines or Contour Lines of Problem 1150, Circle, Perpendicular Secants, 90 Degrees, Parallel Lines |
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Six Tangential or Circumscribed Quadrilaterals Theorem. |
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iPad Apps: Geometry Designer Illustration. Four Circles Theorem.
Interactive Geometry Software for iPad, iPhone, iPod. |
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Johnson's Theorem,
Intersecting circles.
HTML5 Animation |
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