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 26
... sides equal , as B , Fig . 8 . 17. A scalene triangle has three unequal sides , as ABC , Fig . 6 . 18. A right angled triangle has one right angle , as ABC , Fig . 9 : in which the side AC opposite to the 19. An obtuse angled triangle ...
... sides equal , as B , Fig . 8 . 17. A scalene triangle has three unequal sides , as ABC , Fig . 6 . 18. A right angled triangle has one right angle , as ABC , Fig . 9 : in which the side AC opposite to the 19. An obtuse angled triangle ...
Página 29
... AC , AD ; from C and D , From the point A , lay off on each side , the equal dis- GEOMETRY . 29 Geometrical Problems,
... AC , AD ; from C and D , From the point A , lay off on each side , the equal dis- GEOMETRY . 29 Geometrical Problems,
Página 44
... side of any plane triangle being given , to find the other sides . RULE . As the sine of the angle opposite the ... AC , and upon AB let fall the perpendiculars CD and FE , which 44 PLANE TRIGONOMETRY .
... side of any plane triangle being given , to find the other sides . RULE . As the sine of the angle opposite the ... AC , and upon AB let fall the perpendiculars CD and FE , which 44 PLANE TRIGONOMETRY .
Página 45
... side AB = 98 ; * required the sides AC and BC . By Construction , Fig . 41 . Make AB equal to 98 by a scale of equal parts , and draw AC , making the angle A = 32 ° 15 ′ ; also make the angle B = 114 ° 24 ' and produce BC , AC , till ...
... side AB = 98 ; * required the sides AC and BC . By Construction , Fig . 41 . Make AB equal to 98 by a scale of equal parts , and draw AC , making the angle A = 32 ° 15 ′ ; also make the angle B = 114 ° 24 ' and produce BC , AC , till ...
Página 46
... side AC . Extend the compasses from 33 ° 21 ' to 32 ° 15 ′ on the line of sines ; that extent will reach , on the line of num- bers , from 98 to 95 , the side BC . 2. In the right angled triangle ABC , are given the hypothenuse AC = 480 ...
... side AC . Extend the compasses from 33 ° 21 ' to 32 ° 15 ′ on the line of sines ; that extent will reach , on the line of num- bers , from 98 to 95 , the side BC . 2. In the right angled triangle ABC , are given the hypothenuse AC = 480 ...
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