Exercises on Euclid and in modern geometry for the use of schools, private students, and junior university students (1881)
McDowell, James L · Cambridge, Deighton, Bell, and Co. · leaf 188
= {F. CKLD). 194.] AND IN MODERN GEOMETRY. 159 Also the ray i^is common to the two pencils E. BAIIG andF. GKLD, therefore (165) the intersections of the correspondingrays EB and EC, EA and FK, EG and FD lie on the same straightline, but these intersections are the intersections of the twodiagonals… … KB. It is worthy of remark, that in (194) we have cut thesame four sides of the hexagon by any two sides AB, CD, whichhave only one side BC between them, and that the vertices of thepencils are at the extremities of the side opposite BC. Again, in (193) the vertices of the pencils are at any…
Geometry
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