EntityQ5422106· pop 8· linked from 7 articlesextouch triangleSign in to saveConnectionsincircle and excircles of a triangleEntitytriangleEntityEuclidean geometryEntityvertexEntitybarycentric coordinate systemEntityMathematical ReviewsEntityNagel pointEntitysemiperimeterEntitytrilinear coordinatesEntityMandart inellipseEntitySplitterEntityCategoriesCirclesObjects defined for a triangle