EntityQ3915720· pop 14· linked from 39 articlesmedial triangleSign in to savetriangle defined from the midpoints of the sides of another triangleConnectionstriangleEntityareaEntitypolygonEntityEuclidean geometryEntityperimeterEntitycongruenceEntitysimilarityEntityvertexEntitymedianEntityEuler lineEntitynine-point circleEntityhomothetic transformationEntityMathWorldEntitycentroidEntitymidpointEntityEric W. WeissteinEntityorthocenterEntityNagel pointEntityincenterEntitysemiperimeterEntityCategoriesElementary geometryObjects defined for a triangle