EntityQ282952· pop 18· linked from 92 articlesbicentric quadrilateralSign in to savetype of shapeConnectionscircumscribed circle for triangleEntitysquareEntityquadrilateralEntityparallelogramEntitytrapezoidEntityincircle and excircles of a triangleEntitytriangleEntityareaEntityInternational Standard Book NumberEntityangleEntityreal numberEntityrectangleEntityWayback MachineEntitypolygonEntityrhombusEntitydigital object identifierEntityquadratic equationEntitypentagonEntityEuclidean geometryEntityhexagonEntityCategoriesTypes of quadrilaterals