EntityQ4455031· pop 9· linked from 33 articlesFáry's theoremSign in to savetheorem that a planar graph admits straight drawingsConnectionsmathematicsEntityInternational Standard Book NumberEntitydigital object identifierEntityspringEntitygraph theoryEntityline segmentEntitymathematical inductionEntitygraphEntityEuclidean spaceEntityJSTOROrganizationbibcodeEntityQ22908627Entityplanar graphEntitylist of unsolved problems in mathematicsEntitydegreeEntityMathematical ReviewsEntityW. T. TutteEntitycubic graphEntityart gallery problemEntityHorst SachsEntityCategoriesStatements about planar graphsTheorems in graph theory