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 27
... sides is called a trapezoid . 30. A right line joining any two opposite angles of a quadrilateral figure , is called a diagonal . 31. That side upon which any parallelogram , or trian- gle is supposed to stand , is called the base ; and ...
... sides is called a trapezoid . 30. A right line joining any two opposite angles of a quadrilateral figure , is called a diagonal . 31. That side upon which any parallelogram , or trian- gle is supposed to stand , is called the base ; and ...
Página 28
... sides , are called pentagons ; those having six sides , hexagons , and so on . 33. A regular polygon is one whose angles , as well as sides , are all equal . 34. A circle is a plane figure , bounded by one curve line called the ...
... sides , are called pentagons ; those having six sides , hexagons , and so on . 33. A regular polygon is one whose angles , as well as sides , are all equal . 34. A circle is a plane figure , bounded by one curve line called the ...
Página 29
... 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,
... 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 32
... 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 from it to either of the points A , B , or C , describe the circle ...
... 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 from it to either of the points A , B , or C , describe the circle ...
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