EntityQ4903575· pop 11· linked from 9 articlesbicentric polygonSign in to savetangential and cyclic polygonConnectionsincircle and excircles of a triangleEntitytriangleEntityInternational Standard Book NumberEntitysquareEntityequationEntityrectangleEntitypolygonEntityquadrilateralEntitypentagonEntityhexagonEntityequilateral triangleEntityoctagonEntitytangentEntitykiteEntitydecagonEntityregular polygonEntityedgeEntityif and only ifEntityapothemEntitycompass and straightedge constructionEntityCategoriesElementary geometryTypes of polygons