Groups and FieldsHardSplitting Fields and Constructions ShareSplitting Fields and Constructions · Hard problemWhich angle cannot be trisected with ruler and compass?A90∘90^\circ90∘B180∘180^\circ180∘C45∘45^\circ45∘D60∘60^\circ60∘Check Show answer Walk through it step by step Practice more like this Review this concept