The theory and practice of surveying. Designed for the use of surveyors and engineers generally, but especially for the use of students in engineering (1886)
Johnson, J. B. (John Butler), 1850-1902 · New York, J. Wiley & sons · leaf 667
B 6. cosec A = c a = sec B 7. vers A — c -h = covers B c — b 8. exsec A = —^— = coexsec B b 9. covers A = —^ = versin B 10. coexsec A = — = exsec B 11. a = c sin A = b tan A 12. 6 = c cos-4 = a cot A 13. c = -.^ = -^- sm u4 cos-1 14. a = c cos-B = 6 cot B 15. c sin B = a tan J5 21. area IG. c =… … Fig. 108. 22 GIVEN. SOUGHT. formula. A, B,a C,b,c rr lOAo ^ 4 1 PI h — t-in 7? ^ sin ^ c = -A-r sin (A + B) sm A 23 A, a, b B,C, c sin B = ^-*^— . &, C = 180° - (A + ^\a a . ,, sin A 24 C,a,b VAA + B) 14 (^ + ^) = 00° - 14 C 25 VzU-B) tan ^(A- B) = ^^-^ tan )4{A + B) 26 A, B 27 c ^ . , cos^(^ +…
Surveying
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