The elements of Euclid for the use of schools and colleges : comprising the first two books and portions of the eleventh and twelfth books; with notes and exercises (1880)
Todhunter, I. (Isaac), 1820-1884 · Toronto : Copp, Clark · leaf 55
s in the same straight line mth AG. [I. 14.For the same reason, AB and AH Sire in the same straightline. Now the angle DBG is equal to the angle FBA, for eachof them is a right angle. [Axiora 11. Add to each the angle ABC. Therefore the whole angle DBA is equal to the whole angleFBC [Axiom 2. And… … BOOK I. 47, 48. 51 / Now the parallelo^ani BL is double of the triangleABD, because they are on the same ba^e BD, and betweenthe same parallels BD, AL. [I. 41. And the square GB is double of the triangle FBC, because4they are on the same base FB. and between tlie sameparallels FB, GO. [I. 41. But…
Geometry · Euclid's Elements · Mathematics, Greek
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