A treatise on surveying ; in which the theory and practice are fully explained (1860)
Alsop, Samuel · Philadelphia, E. C. & J. Biddle & co. · leaf 301
1.232412 : : GK 5.042 0.702603 : GL 10.807 1.033720 STF = GL - OP = 5.55.Whence LF = v/P^IF= 1.779; whence AF = GL + LF - GA = 3.924. Ex. 2. Given AB K 27i° W. 19.55 chains, BC East18.92 chains, CD S. 1|° E. 10.49 chains, and DA S. 56°W. 12.25 chains, to divide the quadrilateral into two partsABEF… … CASE 3. 407. The division line to be parallel to one side. Let ABCD (Fig. 196) re- Yig.m. present the trapezium whichis to be divided into twoparts having the ratio of mto n by a line parallel to CD. Construction. — Deter-mine H and I, as in the pre-ceding articles. Take GF a mean proportional…
Surveying
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