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 155
^ C F ^ B Case I. Case II. Proof. Gase I. Let the centre of the circle be within theangle BAG. Then, because EA = EB, the Z-EAB == the z_EBA; [L 5..-. the angles EAB, EBA are double of the angle EAB.But the angle BEF = the angles EAB, EBA; [I. 32. .-. the ^BEF is double of the Z.EAB. Similarly, the…
Euclid's Elements · Geometry · Mathematics, Greek
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