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 |
Dentro del libro
Resultados 1-5 de 42
Página 33
... find a third proportional to two given right lines A and B. Draw two right lines , CD , CE B containing any angle ; make CF A equal A , and CG , CH each equal B ; join FG and draw HL paral- lel to it : then will CL be the third ...
... find a third proportional to two given right lines A and B. Draw two right lines , CD , CE B containing any angle ; make CF A equal A , and CG , CH each equal B ; join FG and draw HL paral- lel to it : then will CL be the third ...
Página 34
... find a mean proportional between two given right lines A and B. Draw any right line CE and in it take CD equal A ... angle with AB ; in AE take AF equal C and FE equal D ; join EB and draw FG parallel to it ; then AG will have to GB the ...
... find a mean proportional between two given right lines A and B. Draw any right line CE and in it take CD equal A ... angle with AB ; in AE take AF equal C and FE equal D ; join EB and draw FG parallel to it ; then AG will have to GB the ...
Página 39
... find , by the table , the sine , tangent , & c . of an arc or angle . If the degrees in the given angle be less than 45 , look left hand column ; then in the column marked at for them at the top of the table , and for the minutes , in ...
... find , by the table , the sine , tangent , & c . of an arc or angle . If the degrees in the given angle be less than 45 , look left hand column ; then in the column marked at for them at the top of the table , and for the minutes , in ...
Página 40
... angle and of its supplement being the same , if the given number of degrees be above . 90. subtract them from 180 ° , and find the sine of the remainder . EXAMPLES . 1. Required the sine of 2. Required the tangent of 32 ° 27 ' Ans ...
... angle and of its supplement being the same , if the given number of degrees be above . 90. subtract them from 180 ° , and find the sine of the remainder . EXAMPLES . 1. Required the sine of 2. Required the tangent of 32 ° 27 ' Ans ...
Página 44
... angle CBD , of the trian- gle ABC , is equal to the sum of the internal and oppo- site angles A and C. Fig . 37 . 10 ... find the other sides . RULE . As the sine of the angle opposite the given side , Is to the sine of the angle ...
... angle CBD , of the trian- gle ABC , is equal to the sum of the internal and oppo- site angles A and C. Fig . 37 . 10 ... find the other sides . RULE . As the sine of the angle opposite the given side , Is to the sine of the angle ...
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