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
... 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 has one obtuse angle , right angle is called the hypothenuse . GEOMETRY . Geometrical ...
... 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 has one obtuse angle , right angle is called the hypothenuse . GEOMETRY . Geometrical ...
Página 27
... triangle has one obtuse angle , as C , Fig . 10 . 20. An acute angled triangle has all its angles acute , as ABC , Fig . 6 . 21. Acute and obtuse angled triangles are called oblique angled triangles . 22. Any plane figure bounded by ...
... triangle has one obtuse angle , as C , Fig . 10 . 20. An acute angled triangle has all its angles acute , as ABC , Fig . 6 . 21. Acute and obtuse angled triangles are called oblique angled triangles . 22. Any plane figure bounded by ...
Página 31
... angle equal to a given angle A , Fig . 23 . With the centre A and any distance AE , describe the arc DE , and with ... ABC is the triangle required . PROBLEM IX . Upon a given line AB to describe a square , Fig . 26 . At the end B of the ...
... angle equal to a given angle A , Fig . 23 . With the centre A and any distance AE , describe the arc DE , and with ... ABC is the triangle required . PROBLEM IX . Upon a given line AB to describe a square , Fig . 26 . At the end B of the ...
Página 32
... triangle ABC , Fig . 27 . By problem 1 , bisect any two of the sides , as AC , BC , by the perpendiculars DE and FG ; the point H where they intersect each other will be the centre of the circle ; with this centre , and the distance ...
... triangle ABC , Fig . 27 . By problem 1 , bisect any two of the sides , as AC , BC , by the perpendiculars DE and FG ; the point H where they intersect each other will be the centre of the circle ; with this centre , and the distance ...
Página 35
... angle is the arc of a circle , con- tained between the two lines that form the angle , the angular point being the centre ; thus the angle ABC , Fig . 30 , is measured by the arc DE , and contains the same number of degrees that the arc ...
... angle is the arc of a circle , con- tained between the two lines that form the angle , the angular point being the centre ; thus the angle ABC , Fig . 30 , is measured by the arc DE , and contains the same number of degrees that the arc ...
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