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 30
OP GEOMETRY. BOOK h … PROP. XIX. THEOR. The greater angle of every triangle is subtended by thdgreater side, or has the greater side opposite to it. Let ABC be a triangle, of which the angle ABC iji greater thantbCangle BCA; ihe side AC is likewise greater than the side AB. For, if it be not greater, AC miisteither be…
Euclid's Elements · Geometry · Trigonometry
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