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 35
DEF, ant! the other angles to the other angles, each to each, to whichthe equal sides are opposite; therefore the angle GCB is equal tothe angle DFE hut DFE is, hy the hypothesis, equal to the angleBC A; wherefore also the angle i3CG is equal to the angle BC! A, theless to tlu* greater, which is…
Euclid's Elements · Geometry · Trigonometry
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