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 228
biguity, however, does not arisefrom any defect in the solution, but from a circumstance essential tothe problem, viz. that whenever AC is less than AB, there are twotriangles which have the sides AB, AC, and the angle at B of thesame magnitude in each, but which are nevertheless unequal, theangle… … 22B PLANE TRIGONOMETRY. and C; then, if AC and AC be drawn, it is evident that the trianglesaBC, ABC have the side AB and the angle at B common, and thesides AC and AC equal, but have not the remaining side •f the oneequal \o the remaining side ofthe other, that is, BC to BC, nor theirother angles…
Euclid's Elements · Geometry · Trigonometry
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