The elements of Euclid for the use of schools and colleges; comprising the first six books and portions of the eleventh and twelfth books; (1903)
Euclid, Todhunter, I. (Isaac), 1820-1884, ed. edt, Simson, Robert, 1687-1768, ed. edt · London; New York, Macmillan · leaf 142
Proof. Because, in all three figures, BD is a chord of eachcircle, and GH bisects it at right angles ; .. the centre of each circle is in G-H. [III. 1, Corollary. .*. GH passes through the point of contact. [HI. 11, 12. But GH does not pass through the point of contact, becausethe points B, D are…
Euclid's Elements · Geometry · Mathematics, Greek
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