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 29
... and B. PROBLEM II . At a given point A , in a right line EF , to erect a per- pendicular , Fig . 19 . tances AC , AD ; from C and D , From the point A , lay off on each side , the equal dis- GEOMETRY . 29 Geometrical Problems,
... and B. PROBLEM II . At a given point A , in a right line EF , to erect a per- pendicular , Fig . 19 . tances AC , AD ; from C and D , From the point A , lay off on each side , the equal dis- GEOMETRY . 29 Geometrical Problems,
Página 30
... tances AC , AD ; from C and D , as centres , with any radius greater than AC or AD , describe two arcs in- tersecting each other in B ; from A to B , draw the line- AB , which will be the perpendicular required . PROBLEM III . To raise ...
... tances AC , AD ; from C and D , as centres , with any radius greater than AC or AD , describe two arcs in- tersecting each other in B ; from A to B , draw the line- AB , which will be the perpendicular required . PROBLEM III . To raise ...
Página 91
... tance 18.23 chains , and at the same station the other ad- jacent side bears N. 78 ° 30 E. distance 13.84 chains : required the area . Ans . 11A . 2R . 11P . 4. Required the area of a triangular piece of ground , one side of which bears ...
... tance 18.23 chains , and at the same station the other ad- jacent side bears N. 78 ° 30 E. distance 13.84 chains : required the area . Ans . 11A . 2R . 11P . 4. Required the area of a triangular piece of ground , one side of which bears ...
Página 103
... tances 13.25 chains . Ans . 19A . 2R . 39P . PROBLEM X. To find the area of a circle , or of an ellipsis . * RULE . Multiply the square of the circle's diameter , or the product of the two diameters of the ellipsis , by .7854 , for the ...
... tances 13.25 chains . Ans . 19A . 2R . 39P . PROBLEM X. To find the area of a circle , or of an ellipsis . * RULE . Multiply the square of the circle's diameter , or the product of the two diameters of the ellipsis , by .7854 , for the ...
Página 107
... tance from B to C ; parallel to A 3 draw CD on which lay the third distance from C to D ; proceed in the same manner with the other bearings and distances . To find the area . By drawing lines as in Fig . 75 , the survey is divided into ...
... tance from B to C ; parallel to A 3 draw CD on which lay the third distance from C to D ; proceed in the same manner with the other bearings and distances . To find the area . By drawing lines as in Fig . 75 , the survey is divided into ...
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