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 176
Case I. First, let the z.C be a right l.Bisect AB at F, [I. lo. and with centre F and radius FB describe the semicircle AHB.Then the ^ AHB in a semicircle is equal to the right L.C, [IIL 31. Case IL Let the z_C be not a right /-. H ^ ^ ^H
Euclid's Elements · Geometry · Mathematics, Greek
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