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 378
E, 0, F. Converse.[IIL 21. [If the A be obtuse-angled, as in the second figure, some of theseperpendiculars will meet the opposite sides produced]. Since AEO, AFO are right z^ a circle will pass through A, [III. 22,.-. zFAO^zFEO.Similarly, a circle will pass through B, C, E, F..-. zFEO^zFCB; .-.…
Euclid's Elements · Geometry · Mathematics, Greek
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