Online Geometry Problems

Dynamic Geometry Problem 890: Two Squares inscribed in Circles, Concurrent Lines. GeoGebra, HTML5 Animation for Tablets (iPad, Nexus). Levels: School,  College, Mathematics Education

The dynamic figure below shows the squares ABCD and DEFG inscribed in the circles O and O', respectively. Point E is on CD and circles O and O' intersect at P. Prove that lines AE extended and CG intersect at P.
 


 

Dynamic Geometry of Problem 890
The interactive demonstration above was created with GeoGebra.

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GeoGebra
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. It has received several educational software awards in Europe and the USA.
 

Two Squares inscribed in Circles, Concurrent Lines. GeoGebra, HTML5 Animation for Tablets
 


 

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