EntityQ2226625· pop 8· linked from 7 articlesCommandino's theoremSign in to savegeometric theorem related to tetrahedraConnectionsLeonardo da VinciEntityInternational Standard Book NumberEntitynatural numberEntityquadrilateralEntitypointEntityleverEntityphysicistEntitydimensionEntityvector spaceEntitytetrahedronEntityedgeEntitymedianEntityMathWorldEntitysimplexEntityfaceEntitycentroidEntitymidpointEntityPierre VarignonEntityEric W. WeissteinEntityFrancesco MaurolicoEntityCategoriesEuclidean geometryTetrahedraTheorems about polyhedronTheorems in geometry