Elements of geometry : containing the first six books of Euclid, with a supplement on the quadrature of the circle, and the geometry of solids : to which are added, Elements of plane and spherical geometry (1826)
Playfair, John, 1748-1819, Euclid · Philadelphia : Marot & Walter · leaf 34
OF Gt)OMETRY. BOOK I. 3^ … Wherefore, if two jequal to the two sides DE, DF, each to each, viz. AB equal to DE,and AC to DF: but let the base C B be greater than the base EF,the angle 6 AC is likewise greater than the angle EOF. For, if it be not greater, it must either be ei^ual to it, or less; hutthe afigle isAC is not…
Euclid's Elements · Geometry · Trigonometry
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