Go Geometry Education

Geometry: Circles, Chord, Diameter, Arc, Semicircle, Tangent, Theorems and Problems 2

Circles - Table of Content (Page 2)

Circles

 

Euclidean Egg, Step-by-Step Construction. HTML5 Animation

GeoGebra, Dynamic Geometry, Euclidean Egg, Step-by-Step Construction
HTML5 Animation for Tablets (iPad, Nexus)

Billiards and Geometry Index

Billiards and Geometry - Index
Billiards Ball.

Lemoine Line Theorem

Lemoine Line Theorem, Interactive illustration.
HTML5 Animation for iPad and Nexus

Dynamic Geometry: Lemoine Line of a Triangle. HTML5 Animation for Tablets (iPad, Nexus..)

GeoGebra, Dynamic Geometry: Lemoine Line of a Triangle.
HTML5 Animation for Tablets (iPad, Nexus..)

Dynamic Geometry: Simson Line of a Triangle. HTML5 Animation for Tablets (iPad, Nexus..)

GeoGebra, Dynamic Geometry: Simson Line of a Triangle.
HTML5 Animation for Tablets (iPad, Nexus..)

Lester Circle Theorem

Lester Circle Theorem.

Circle Word Cloud

Word Cloud of Circle.
Visual Summary.

Circumcenter Index

Circumcenter. Index.

Incenter, Incircle, Index

Incenter of a triangle. Index.

Excenter, Excircle, Index

Excenter. Index.
Excircle, Exradius.

Dynamic Geometry: Internal Feuerbach Point. HTML5 Animation for Tablets iPad, Nexus

GeoGebra, Dynamic Geometry: Internal Feuerbach Point
HTML5 Animation for Tablets (iPad, Nexus..)

Soddy Circles and Descartes Theorem

Soddy Circles and Descartes Theorem.
Three tangent circles, Inscribed and Circumscribed Circles, Radii.

Macheroni Constructions Index

Mascheroni construction with compass alone. Index

Ptolemy Theorem and Problems Index

Ptolemy's Theorems and Problems - Index.

Brahmagupta Theorem and Problems Index

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.

Tangential or Circumscribed Quadrilateral Index, theorems and problems

Tangential or Circumscribed Quadrilateral
 

Mascheroni Construction with compass alone

Mascheroni construction: Find the center of a circle with compass alone.

Mascheroni construction with compass alone

Mascheroni construction: Construct the circumcircle of a triangle with compass alone.

Euclid's Elements Book I, Proposition 3

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

Euclid's Elements Book I, Proposition 2

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

Euclid's Elements Book I, Proposition 1

Euclid's Elements Book I, Proposition 1: On a given finite line to construct an equilateral triangle

Distance between the incenter to the centroid

Distance between the Incenter and the Centroid of a Triangle.
Formula in terms of the sides a,b,c.

Distance between triangle centers

Distances between Triangle Centers Index.

Tangential Quadrilateral

Tangential or Circumscribed Quadrilateral: Diagonals, Inradii Theorem.

Isolines of problem 1150

Geometric Art: Isolines or Contour Lines of Problem 1150, Circle, Perpendicular Secants, 90 Degrees, Parallel Lines

Six Tangential Quadrilaterals Theorem

Six Tangential or Circumscribed Quadrilaterals Theorem.

iPad App Geometry Designer Four Circles Theorem

iPad Apps: Geometry Designer Illustration. Four Circles Theorem.
Interactive Geometry Software for iPad, iPhone, iPod.

Johnson: Intersecting circles

Johnson's Theorem, Intersecting circles.
HTML5 Animation

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Last updated: Mar 9, 2022