A treatise on surveying ; in which the theory and practice are fully explained (1860)
Alsop, Samuel · Philadelphia, E. C. & J. Biddle & co. · leaf 270
act, will give the area of BLDC, which may be parted offas directed in Art. 384. Sec.L] LAYING OUT LAND. 267 CASE 3. 386. By a line through a given point. Produce CB and DA Fig. 179. (Fig. 179) to meet in E,and calculate the areaEAB. Thence ECD isfound. Proceed as in Art.381. Thus, calculate… … Determine AE. Then ED = EF + v/FE? - EK2, andAD = ED - EA. Examples. Ex. 1. Given DA West, AB K 16° 15 W. 6.30 chains,BC IS. 57° E., to cut off 3 acres by a line through a P, situated K 25° 30 E. 6.09 chains from thecorner A. spring ., To find EA, EAB, and ECD. As sin. E 33° : sin. B 73° 15 :: AB…
Surveying
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