EntityQ4019597· pop 11· linked from 4 articlesclock angle problemSign in to saveMathematical questionWikidata factsInstance ofmathematical problemvia Wikidata · CC0ConnectionstimeEntityclockEntityangleEntitydegreeEntityJSTOREntity12-hour clockEntitymathematical problemEntityclock positionEntityCategoriesClocksElementary geometryElementary mathematicsMathematical problemsMathematics education