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 123
OP GEOMETRY. BOOK VI. las gjle CAD: Therefore the angle BAG is cut into two equal angles by5ie straight line AD. Therefore, if the angle, &c. Q. E. D. PROP. A. THEOR. If thc5 exterior angle of a triangle be bisected by aStraight line which also cuts the base produced; the seg-ments between the…
Euclid's Elements · Geometry · Trigonometry
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