A treatise on surveying ; in which the theory and practice are fully explained (1860)
Alsop, Samuel · Philadelphia, E. C. & J. Biddle & co. · leaf 291
5r 0.047269 56° 9.918574 78° 45 9.991574 12.66 1.102434 a 1.102434 153.68 2.186615 2 5)307.36 DE = V 61.472 = 7.841. As sin. A 45° 15 A. C. 0.148628 : sin. E 63° 45 9.952731 :: DE 7.841 0.894371 : AD 9.902 0.995730 288 LAYING OUT AND DIVIDING LAND. [Chap. VII. Ex. 2. Given AB K 63° W. 12.73 ch., BC… … 402. By a line through a given point Let ABC (Fig. 190) be the tri-angle to be divided into two partsCLK and ABKL, which shall beto each other as the numbers mand n : the division line to runthrough a given point P. Construction. Bisect BC in D; divide CA in F, so that CF : FA :: m :n. Through P…
Surveying
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