New plane and spherical trigonometry, surveying, and navigation (1903)
Wentworth, G. A. (George Albert), 1835-1906 · Boston : Ginn & Company · leaf 159
sides equal to radius, andincluded angle of 80°. Area of sector = §f $ it 2524375 it log 4375 = 3.64098log7t = 0.49715colog 9 = 9.04576 - 10log area = 3.18389 Area of sectorArea of triangle 1527.2. i x 252 sin 80° 312.5 sin 80°. log 312.5 = 2.49485 log sin 80° = 9.99335 log area = 2.48820 Area of… … tan AEB = -1/ = 5.log tan AEB = 10.69897. AEB = 78° 41 24.ACB = l$0°-2 AEB= 22° 37/ 12.AC = AB esc ACB= 10 esc 22° 3712 log 10 log csc 22° 3712 log AC ACACB Area of sector : 1.00000: 0.41497: 1.41497
Trigonometry · Surveying · Navigation
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