New plane and spherical trigonometry, surveying, and navigation (1903)
Wentworth, G. A. (George Albert), 1835-1906 · Boston : Ginn & Company · leaf 127
am ASSSS ~ sin SASlog SS = 0.69897log Bin ASS= 9.93753colog sin SAS = 0,01506logSA = 0.65156AB _ sin BSAWA ~ sin SBAlogSA = 0.65156log sin BSA = 9.84949colog sin SBA = 0.30103log AB = 0.80208AB = 6.3399.Therefore, the distance from A toB is 6.3399 miles. 3. A castle and a monumentstand on the same… … EC = height of castle.AB = height of monument. MOB = 40°.HCA = 10°.HAC = 80°.HC = 140 feet. sin Alog 140 = 2.14613colog sin A = 0.00665log^LC = 2.15278HCA = 10°,MCB = 40°..-. ACB = 40°,CAB = 10°..-. ABC = 130°. ^ICsinC AB. sin B log-4(7 = 2.15278 log sin 0 = 9.80807 colog sin B = 0.11575 log AB=…
Trigonometry · Surveying · Navigation
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