John Casey
John Casey was a respected Irish geometer. He is most famous for Casey's theorem on a circle that is tangent to four other circles, an extension of Ptolemy's theorem. However, he contributed several novel proofs and perspectives on Euclidean geometry. He and Émile Lemoine are considered to be the co-founders of the modern geometry of the circle and the triangle.
From *.wikipedia.org,
General Info
.
Male
Date of Birth
May 12nd, 1820
Age
206
Birth Place
Ireland, Munster, County Limerick
Date of Death
January 3rd, 1891
Died Aged
70
Star Sign
Taurus
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