EntityQ3497142· pop 9· linked from 6 articlesBarrow's inequalitySign in to saveinequality relating the sum of distances of a point to a triangle's vertices with the sum of distances to the vertices of the incentral triangleConnectionsgeometryEntitytriangleEntitydigital object identifierEntitytrigonometric functionEntityPaul ErdősEntityequilateral triangleEntityinequalityEntityJSTOROrganizationEuclidean distanceEntityEuler's theorem in geometryEntityMathematical ReviewsEntityLouis J. MordellEntitybisectionEntityAmerican Mathematical MonthlyEntityErdős–Mordell inequalityEntityThe Mathematical GazetteEntityAlexander OppenheimEntitylist of triangle inequalitiesEntityAnnali di Matematica Pura ed ApplicataEntityCategoriesTriangle inequalities