GeoGebra Dynamic Geometry Brahmagupta Theorem, Cyclic Quadrilateral, Perpendicular Diagonals, Midpoint. HTML5 Animation for Tablets (iPad, Nexus), Mathematics Education. Distance learning.

Dynamic Geometry: Brahmagupta Theorem, Cyclic Quadrilateral, Perpendicular Diagonals, Midpoint. GeoGebra, HTML5 Animation for Tablets (iPad, Nexus). Levels: School, College, Mathematics Education

The dynamic figure below shows a cyclic quadrilateral ABCD with perpendicular diagonals, then the perpendicular to a side from the point of intersection of the diagonals always bisects the opposite side.

Dynamic Geometry
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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.

Brahmagupta Theorem, Cyclic Quadrilateral, Perpendicular Diagonals, Midpoint. GeoGebra, HTML5 Animation for Tablets