Elements of surveying and navigation : with a description of the instruments and the necessary tables (1847)
Davies, Charles, 1798-1876 · New York : A.S. Barnes & Co. · leaf 72
. . 600.11 yards. . 2.778151 : BC . 2.778231 % To find the distance AC. As sin C 57° 34 ar. comp. . 0.073649 : sin B 64051. . 9.956744 :: AB 600 ... .643.94 yards PROBLEM II. . 2.778151 : AC 2.808544 To determine the altitude of an inaccessible object above a giveuhorizontal plane. FIRST METHOD.… … C3 ELEMENTS OF SURVEYING. Measure any horizontal base line, as B*B.; and at the ex-tremities B and A, measure the horizontal angles CBA andCAB. Measure also, the angle of elevation DBC. Then in the triangle CBA there will be known, two anglesand the side AB; the side BC can therefore be…
Surveying · Navigation
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