Mathematician:Henry Perigal

Mathematician

British stockbroker and amateur mathematician, best known for his dissection proofs, and his dissection-based proof of Pythagoras's Theorem.

Also known for his unorthodox belief that the moon does not rotate.

Nationality

English

History

• Born: 1 April 1801
• Died: 6 June 1898

Theorems and Definitions

• Pythagoras's Theorem: Dissection-Based Proof

Results named for Henry Perigal can be found here.

Publications

• 1891: Geometric Dissections and Transpositions

Sources

• John J. O'Connor and Edmund F. Robertson: "Henry Perigal": MacTutor History of Mathematics archive