Plane trigonometry, and its application to mensuration and land surveying. Accompanied with all the necessary logarithmic and trigonometric tables (1852)
Perkins, George R. (George Roberts), 1812-1876 · New York, D. Appleton · leaf 131
A. 2R. 25P. 120 SURVEYING. [CHAP. IX. § 80. Suppose the bearing and length of one of the sides ofa field not to be taken, on account of obstructions ; it is requiredto determine its bearing and length on the supposition that allthe other sides have been accurately taken. As an example, suppose in a… … Nos. Bearings. Dists. N. S. E. W. 12 oo N. 57° E. 4-04 2-20 3-38 S. 74° E. 7-25 2-00 6-97 S. 20|° E. 3-87 363 1-34 4 S. 24£° W. 4-39 (5-39) 3-99 1-82 5 (S. 52° W.) (3-32) (4-24) 6 S. 87° W. 3-56 0-19 356 7 K 10|° W. 11-12 10-93 2-07 We proceed to find the latitudes and departures of all thesides…
Plane trigonometry · Surveying
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