A Treatise on Surveying,: Containing the Theory and Practice: : to which is Prefixed a Perspicuous System of Plane Trigonometry. : The Whole Clearly Demonstrated and Illustrated by a Large Number of Appropriate Examples. : Particularly Adapted to the Use of SchoolsKimber and Sharpless, no. 93, Market Street, and John Richardson, no. 244, Market Street., 1820 - 206 páginas |
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Página 114
... twice , and set the sums or remainders in the column of meridian distances opposite the departure . Proceed in a similar manner with each departure , and if the additions and subtractions be rightly performed , the last meridian ...
... twice , and set the sums or remainders in the column of meridian distances opposite the departure . Proceed in a similar manner with each departure , and if the additions and subtractions be rightly performed , the last meridian ...
Página 115
... twice and subtract each of the westings twice , the meridian distances will be found as in the table . But Prob . 9. the product of Aa + Bb , the upper meridian distance in the first horizontal column , by Ag , the corresponding ...
... twice and subtract each of the westings twice , the meridian distances will be found as in the table . But Prob . 9. the product of Aa + Bb , the upper meridian distance in the first horizontal column , by Ag , the corresponding ...
Página 123
... 2ABCDEFGHA + 2.AbB + 2.GghH ; from this sum subtracting the sum of the north areas which is 2.AbB + 2.GghH , the remainder is 2.ABCDEFGHA ; that is , twice the area of the survey . Sta Courses . Dist . N. S. E. W. Cor. MEASURING LAND . 123.
... 2ABCDEFGHA + 2.AbB + 2.GghH ; from this sum subtracting the sum of the north areas which is 2.AbB + 2.GghH , the remainder is 2.ABCDEFGHA ; that is , twice the area of the survey . Sta Courses . Dist . N. S. E. W. Cor. MEASURING LAND . 123.
Página 156
... twice the given area ; So is radius , To the other side adjacent to the given angle . Then having two sides and the included angle given , the other angles and side , if required , may be found by For a parallelogram . As the rectangle ...
... twice the given area ; So is radius , To the other side adjacent to the given angle . Then having two sides and the included angle given , the other angles and side , if required , may be found by For a parallelogram . As the rectangle ...
Página 157
... twice the given area 200 sq . ch . :: rad . : BD 14.21 ch . - * DEMONSTRATION . It is demonstrated , prob . 3 , sect . 1 , Measur- ing Land , that rad . : sin . B :: AB × BD : 2. ABD ( see Fig . 87. ) ; therefore ( 1.6 cor . ) rad ...
... twice the given area 200 sq . ch . :: rad . : BD 14.21 ch . - * DEMONSTRATION . It is demonstrated , prob . 3 , sect . 1 , Measur- ing Land , that rad . : sin . B :: AB × BD : 2. ABD ( see Fig . 87. ) ; therefore ( 1.6 cor . ) rad ...
Términos y frases comunes
ABCD ABFD acres adjacent adjacent angles angle ABC angle opposite angled triangle base bearing and distance breadth Calculation centre Co-secant Secant Co-sine Co-tang column cube root decimal DEMONSTRATION departure corresponding diff difference of latitude Dist divide division line draw equal EXAMPLES feet figures find the angle find the area four-pole chains fourth term given angle given area given bearing given number given ratio given side John Gummere Lat Dep latitude and departure length logarithm M.
M. Sine measured meridian distance natural number off-sets parallel parallelogram perches perpendicular quired quotient radius rectangle remainder Required the area right angle right line right-angled triangle RULE semiperimeter side AB side AC square root station stationary line subtract survey tance Tang tangent tract of land trapezium trapezoid triangle ABC trigonometry