Dynamic Geometry 1475: Clifford Intersecting Circles Theorem, Step-by-step Illustration
The dynamic geometry figure below shows four green circles c1, c2, c3, and
c4 passing through a point P. Circles c1 and c2 intersect at P12, and so
on, P13, P23, P24, P14, and P34. Red Circle c123 passes through P12, P23,
and P13, and so on. Prove that the four red circles pass
through a point M.
Static Diagram of Clifford Theorem
Poster of the Clifford Theorem 1475 using iPad Apps
Interactive step-by-step animation using GeoGebra
This step-by-step interactive illustration was created with
- To explore (show / hide): click/tap a check box.
- To stop/play the animation: click/tap the icon in the lower left corner.
- To go to first step: click/tap the "Go to step 1" button.
- To manipulate the interactive figure: click/tap and drag the blue points
GeoGebra is free and multi-platform dynamic mathematics software for all levels of education that joins geometry, algebra, tables, graphing, statistics and calculus application, intended for teachers and students. Many parts of GeoGebra have been ported to HTML5.
Ten problems: 1411-1420
HTML5 and Dynamic Geometry
View or Post a solution