A treatise on surveying, comprising the theory and the practice ; (1887)
Gillespie, W. M. (William Mitchell), 1816-1868, Staley, Cady, 1840- [from old catalog] ed · New York, D. Appleton and company · leaf 547
e theorem still holds good.The same demonstration applies.without any change.* Theoeem II.—Conversely : If threepoints oe talen on tiro sides of a triangle,and on the third side prolonged, or onthe prolongations of the three sides, di-viding them into six parts, such that theproduct of three… … This theorem may be extended to polygons. TRANSVERSALS. 533 of a triangle, lines he drawn, to a point situated either within or withoutthe triangle, and prolonged to meet the sides of the tri-angle, or their prolongations, thus them into Fig. 579. six parts, then will the product of any three…
Surveying
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