Trisecting an angle

Wantzel proved that trisecting an angle solely with a compass and straightedge was impossible under the restrictions set by Greek rules. This result contributed to the field of mathematics by establishing the limitations of certain geometric constructions.
 Pierre Wantzel France 1837 Trisecting an angle

Wantzel proved that trisecting an angle solely with a compass and straightedge was impossible under the restrictions set by Greek rules. This result contributed to the field of mathematics by establishing the limitations of certain geometric constructions.