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 páginas |
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Página 25
... line is length without breadth , as AB . fig . 1. and 2 . fig . 1 . A- -B 4. The extremities of a line are points , as the extremities of the line AB are the points A and B. 5. A right line is the shortest that can be drawn between any ...
... line is length without breadth , as AB . fig . 1. and 2 . fig . 1 . A- -B 4. The extremities of a line are points , as the extremities of the line AB are the points A and B. 5. A right line is the shortest that can be drawn between any ...
Página 26
... line AB to the line BC meeting each other in the point B. or the opening of the two lines BA and BC , is called an ... right - lined angle , as ABC . fig . 4 . If one of them be right and the other curved , it is called a mixed - angle ...
... line AB to the line BC meeting each other in the point B. or the opening of the two lines BA and BC , is called an ... right - lined angle , as ABC . fig . 4 . If one of them be right and the other curved , it is called a mixed - angle ...
Página 27
... line CB . is called the semi- diameter , or radius , or any line from the centre to the circumference ; whence all radii of the same , or of equal circles are equal . 16 . The diameter of a circle is a right line drawn through the ...
... line CB . is called the semi- diameter , or radius , or any line from the centre to the circumference ; whence all radii of the same , or of equal circles are equal . 16 . The diameter of a circle is a right line drawn through the ...
Página 28
... line or lines . If the lines be right it is called a rectilineal figure , if curved it is called a curvilineal figure ; but if they be partly right and partly curved lines , it is called a mixt figure . 19. The most simple rectilineal ...
... line or lines . If the lines be right it is called a rectilineal figure , if curved it is called a curvilineal figure ; but if they be partly right and partly curved lines , it is called a mixt figure . 19. The most simple rectilineal ...
Página 31
... right line may be 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 ...
... right line may be 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 ...
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A Treatise of Practical Surveying: Which is Demonstrated From Its First ... Robert Gibson Sin vista previa disponible - 2021 |
Términos y frases comunes
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