An elementary treatise on geometry : simplified for beginners not versed in algebra (1833)
Grund, Francis J. (Francis Joseph), 1805-1863 · Boston : Carter, Hendee & Co. · leaf 51
h each other in all their parts;that is, they are equal to each other. Q. How can you prove it ? A. Because, if, in a triangle,ABC, for instance, you have thesides AB and AC, and the angleat B, which is opposite to the j^.greater side AC, given, the wholetriangle is determined. For, in thefirst… … GEOMETftY. 47 ular AD to be let fall upon BC (Fig. I.), or if the angleABC be obtuse (as in Fig. II.) on its further extensionBE, there can be but one point in the line BC, on thisside of the perpendicular, from which a line drawn to thepoint A, is as long as the line AC (see consequence 6t:iof the…
Geometry, Plane
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