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 189
f the circle AEF, CA = CE ; [I. Definition 15. but CE = D ; [Construction. .-. CA = D. [Axiom I. Wherefore, in the circle ABC, a straight line CA is placed equal to the given straight line D, which is not greater than the diameter of the circle. [q.£.f. BOOK IV. 2, 177 Proposition 2. Problem. In a… … Construction. At any point A on the circumference drawthe tangent GAH ; [III. 17. at A make the Z.HAO equal to the Z.DEF, [I. 23. and also make the a.GAB equal to the ^DFE;join BC. ABO shall be the triangle required. Proof. Because GAH touches the circle ABC, and AC isdrawn from the point of…
Euclid's Elements · Geometry · Mathematics, Greek
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