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 31
... given point B , in a given right line LG , to make an angle equal to a given angle A , Fig . 23 . With the centre A and any distance AE , describe the arc DE , and with the same distance and centre B de- scribe the arc FG ; make HG ...
... given point B , in a given right line LG , to make an angle equal to a given angle A , Fig . 23 . With the centre A and any distance AE , describe the arc DE , and with the same distance and centre B de- scribe the arc FG ; make HG ...
Página 33
... given right lines A and B. Draw two right lines , CD , СЕ в containing any angle ; make CF equal A , and CG , CH each equal B ; join FG and draw HL paral- lel to it : then will CL be the third proportional required . F D H E C GL ...
... given right lines A and B. Draw two right lines , CD , СЕ в containing any angle ; make CF equal A , and CG , CH each equal B ; join FG and draw HL paral- lel to it : then will CL be the third proportional required . F D H E C GL ...
Página 34
... given right line AB into two parts that shall have the same ratio to each other as two given lines C and D. Draw AE making any angle with AB ; in AE take AF equal D C and FE equal D ; join EB and draw FG parallel to it ; then AG will ...
... given right line AB into two parts that shall have the same ratio to each other as two given lines C and D. Draw AE making any angle with AB ; in AE take AF equal D C and FE equal D ; join EB and draw FG parallel to it ; then AG will ...
Página 35
... given , the others are determined . 1 2. The periphery of every circle is supposed to be divided into 360 equal ... angle is the arc of a circle , con- tained between the two lines that form the angle , the angular point being the ...
... given , the others are determined . 1 2. The periphery of every circle is supposed to be divided into 360 equal ... angle is the arc of a circle , con- tained between the two lines that form the angle , the angular point being the ...
Página 38
... given point A in a given right line AB , to make an angle of any proposed number of degrees , suppose 38 degrees . Fig . 33 . With the centre A , and a radius equal to 60 degrees , taken from a scale of chords , describe an arc ...
... given point A in a given right line AB , to make an angle of any proposed number of degrees , suppose 38 degrees . Fig . 33 . With the centre A , and a radius equal to 60 degrees , taken from a scale of chords , describe an arc ...
Términos y frases comunes
ABCD ABFD acres adjacent adjacent angles angle ABC angle opposite angled triangle azimuth base bearing and distance breadth Calculation centre Co-secant Secant Co-sine Co-tang column decimal degrees 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 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 semiperimeter side AB side AC sine square root station stationary line subtract tance Tang Tangent tract of land trapezium trapezoid triangle ABC trigonometry