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 168
f one triangle foranother, by means of parallel lines. It is not absolutely necessaryactually to draw the parallels; it is only requisite to denote thepoints in which they cut the sides, or their further extension, be-cause all depends upon the determination of these points. Problem XXVI. To… … Solution. 1st Case. Let ABCDEF be a hexagon,which is to be transformed into a triangle ; let the vertexof the triangle be in the point M in the side CD, and thebase in AF. 1. In the first place, get rid of the angle ABC, bydrawing Ba parallel to CA, and joining Ca; the triangleCBa, substituted for…
Geometry, Plane
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