A system of geometry and trigonometry, with a treatise on surveying; in which the principles of rectangular surveying, without plotting, are explained (1835)
Flint, Abel, 1765-1825, Gillet, George · Hartford, Belknap & Hamersley; New York, Cooke & Co. · leaf 59
450- - 9.849485 2.068498 Doub. area, 54.01 1.732499 Triangle aABaBCaCDaDEaEFaFA Double area Area 85.67 827 51.75 4 117.1 121.7 3)308 86.31 40 54.01 12)320 516.54 Acres Roods Rods. ■ Area 25 — 3 — 12.32 25)827 CASE VI. To STJRVHY A FIELD FROM SOME ONE OF THE ANGLES, FROMWHICH THE OTHERS MAY BE… … Ch. L.FG. N. 70o W. 14.60 FA. N. 50 FB. N. 30 FC. N. 10 FD. N. 7 FE. N. 30 W. 18.20 W. 16.80 W. 21.20 E. 16.95 E. 8.50 TO DRAW A PLOT OF THIS FIELD. Draw a meridian line to pass through the stationary angleas at F. From the point F, lay off the bearing and distanceto the several angles, and connect…
Surveying
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