A Treatise on Practical Surveying: Which is Demonstrated from Its First Principles : Wherein Every Thing that is Useful and Curious in that Art, is Fully Considered and ExplainedF. Lucas, jun. and Cushing & Jewett, J. Robinson printer, 1822 - 326 σελίδες |
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Σελίδα 25
... drawn between any two points , as the line A▭▭▭▭▭▭▭▭▭▭▭▭B . If it be not the shortest , it is then call- ed a curve line , as AB . fig . 2 • 6. A superfices , or surface , is that which has length and breadth , without ...
... drawn between any two points , as the line A▭▭▭▭▭▭▭▭▭▭▭▭B . If it be not the shortest , it is then call- ed a curve line , as AB . fig . 2 • 6. A superfices , or surface , is that which has length and breadth , without ...
Σελίδα 27
... drawn through the centre , and terminated on both sides by the circumference ; and it divides the circle and circumference into two equal parts called semi- circles ; and is double the radius , as AB or DE , fig . 8 . 17. Parallel lines ...
... drawn through the centre , and terminated on both sides by the circumference ; and it divides the circle and circumference into two equal parts called semi- circles ; and is double the radius , as AB or DE , fig . 8 . 17. Parallel lines ...
Σελίδα 29
... drawn from the vertex to the base perpendicularly : thus if the triangle ABC , be propos- ed , and BC be made its base , then в if from the vertex A , the perpendi- cular AD be drawn to BC , the line AD will be the height of the tri ...
... drawn from the vertex to the base perpendicularly : thus if the triangle ABC , be propos- ed , and BC be made its base , then в if from the vertex A , the perpendi- cular AD be drawn to BC , the line AD will be the height of the tri ...
Σελίδα 31
... drawn from any one given point to another . 2. That a right line may be produced or continued at pleasure . 3. That from any centre and with any radius , the circumference of a circle may be described . 4. It is also required that the ...
... drawn from any one given point to another . 2. That a right line may be produced or continued at pleasure . 3. That from any centre and with any radius , the circumference of a circle may be described . 4. It is also required that the ...
Σελίδα 34
... drawn from one point , on the same side of a right line ; all the angles made by these lines will be equal to two right angles . 2. And all the angles which can he made about a point , will be equal to four right angles . THEOREM II ...
... drawn from one point , on the same side of a right line ; all the angles made by these lines will be equal to two right angles . 2. And all the angles which can he made about a point , will be equal to four right angles . THEOREM II ...
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A Treatise of Practical Surveying: Which is Demonstrated From Its First ... Robert Gibson Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2021 |
Συχνά εμφανιζόμενοι όροι και φράσεις
20 perches ABCD acres altitude Answer base bearing blank line centre chains and links chord circle circumferentor Co-secant co-sine Co-tang column compass contained cyphers decimal decimal fraction difference Dist divided divisor draw east edge EXAMPLE feet field-book figures four-pole chains given angle half the sum height Hence hypothenuse inches instrument latitude length logarithm measure meridian distance multiplied needle number of degrees object off-sets opposite parallel parallelogram perpendicular piece of ground plane polygon Portmarnock PROB proportion protractor quotient radius right angles right line scale of equal SCHOLIUM secant second station sect semicircle side sights sine square root stationary distance stationary line sun's suppose survey taken tang tangent thence theo theodolite THEOREM thro triangle ABC trigonometry true amplitude true azimuth two-pole chains vane variation whence