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 23
BOOK I. 3. 11 / Proposition 3. Problem. From the greater of two given straight lines to cut off a part equalto the leo3. Let AB and C be the two given straight lines, of whichAB is the greater: It is required to cut off from AB, the greater, a part eqvxil to C,the less. D … Construction. From the point A draw the straight line AD equal to C ; [I. 2. and with centre A and radius AD, describe the circle DEF, meeting AB at E. [Postulated. Then AE shall be equal to C. Proof. Because A is the centre of the circle DEF, therefore AE is equal to AD. [Def. 15. But 0 is equal…
Euclid's Elements · Geometry · Mathematics, Greek
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