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 31
ypothesis. the angle ACD is equal to the angle ADC. [I. 5. But the angle ACD is greater than the angle BCD, [Ax/S. therefore the angle ADC is also greater than the angle BCD; much more then is the angle BDC greater than the angle BCD. BOOK I. 7. 19 Again, because BC is equal to BD, IHypothesis. the… … Then because AC is equal to AD, in the triangle ACD, [Hyp,the angles ECD, FDC, on the other side of the base CD, areequal to one another. [I. 5. But the angle ECD is greater than the angle BCD, [Axiom 8. therefore the angle FDC is also greater than the angle BCD; much more then is the angle BDC…
Euclid's Elements · Geometry · Mathematics, Greek
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