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A system of geometry and trigonometry : with a treatise on surveying ... in which, also, the principles of rectangular surveying ... are fully explained: with a complete series of mathematical tables, and the necessary explanations (1830)

Flint, Abel, 1765-1825, Gillet, George, Barnard, Frederick A. P. (Frederick Augustus Porter), 1809-1889 · Hartford : Cooke & co. · leaf 76

An illustration from A system of geometry and trigonometry : with a treatise on surveying ... in which, also, the principles of rectangular surveying ... are fully explained: with a complete series of mathematical tables, and the necessary explanations, 1830, leaf 76
When the given base is so situ-ated that a perpendicular of suf-ficient length cannot be erectedtherefrom, continue the base asfrom B to D, Jig. 65. fromwhich erect the perpendicularDC, and complete the triangleABC, which will contain 100acres. ^ Fig. 65. … PART III. j: : J Dividing land. As different fields are so variously, and many of them ir-regularly shaped, and as they are required to be divided inmany different proportions, it is difficult to give rules whichwill apply to particular cases. The business of dividing landmust therefore be left, in…

Surveying

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