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 9
Containing three different rules for finding the areas of right - lined figures generally , when the bearings and distances of the boundaries are given , 109 SECT . III . Containing Off - setts and Intersections , 138 Laying out and ...
Containing three different rules for finding the areas of right - lined figures generally , when the bearings and distances of the boundaries are given , 109 SECT . III . Containing Off - setts and Intersections , 138 Laying out and ...
Página 83
... bearing or course of a line is its situation in respect to the north and south points of the horizon . A line running due north and south is called a MEASURING LAND . 83.
... bearing or course of a line is its situation in respect to the north and south points of the horizon . A line running due north and south is called a MEASURING LAND . 83.
Página 84
The bearing of a line is expressed by the angle contained between it , and a meridian line passing through one of its ends , and is said to be north so many degrees east or west , or south so many degrees east or west , according as the ...
The bearing of a line is expressed by the angle contained between it , and a meridian line passing through one of its ends , and is said to be north so many degrees east or west , or south so many degrees east or west , according as the ...
Página 85
When the bearing of one of the lines is between the north and east and the other between the north and west , or when one is between the south and east and the other between the south and west , add them together ; the sum will be the ...
When the bearing of one of the lines is between the north and east and the other between the north and west , or when one is between the south and east and the other between the south and west , add them together ; the sum will be the ...
Página 96
... other given side and its adjacent angles : Half the difference of the areas thus found will be the area of theftrapezium . * EXAMPLES . 1. In a four - sided field ABCD , there are given the following bearings and distances , viz .
... other given side and its adjacent angles : Half the difference of the areas thus found will be the area of theftrapezium . * EXAMPLES . 1. In a four - sided field ABCD , there are given the following bearings and distances , viz .
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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 Co-sine Co-tang column decimal Deg Dist degrees DEMONSTRATION Dep Lat departure corresponding diff difference of latitude 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 ratio given side John Gummere Lat Dep latitude and departure length logarithm measured meridian distance natural number off-sets parallel parallelogram perches perpendicular perpendicular BC quired quotient radius rectangle remainder Required the area right angle right line right-angled triangle RULE Secant semiperimeter side AB side AC sine square root station stationary line subtract survey tance Tang Tangent tract of land trapezium trapezoid triangle ABC trigonometry ܟܬ