Dynamic
Geometry Problem 889:
Carnot's Theorem in an acute triangle, Circumcenter,
Circumradius, Inradius. GeoGebra, HTML5 Animation for Tablets (iPad, Nexus). Levels:
School, College, Mathematics Education
The dynamic figure below shows an acute triangle ABC, prove that the sum of the distances (OA_{1}, OB_{1}, OC_{1}, ) from the circumcenter O to the sides, is equal to the sum of the circumradius (R) and the inradius
(r).
