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 9
... Tangents , and Secants . DEFINITION . SURVEYIN SURVEYING is that art which enables us to give a plan or just representations , of any piece or par- cel of land and to determine the content thereof , in such measure as is agreeable and ...
... Tangents , and Secants . DEFINITION . SURVEYIN SURVEYING is that art which enables us to give a plan or just representations , of any piece or par- cel of land and to determine the content thereof , in such measure as is agreeable and ...
Página 47
... tangent , & c . of that arc will be also greater . Therefore , in general , the chord , sine , tan- gent , & c . of any arc is proportional to the radius of the circle ( the same way the chord AB is to the chord a b , in the same ...
... tangent , & c . of that arc will be also greater . Therefore , in general , the chord , sine , tan- gent , & c . of any arc is proportional to the radius of the circle ( the same way the chord AB is to the chord a b , in the same ...
Página 54
... tangent , DI its co - tangent ; CK its secant , and CI its co - secant . fig . 8 . fir . 8 . D FXH 6 B F 1. The co - sine of an arc is to the sine , as radius is to the tangent . 2. Radius is to the tangent of an arc , as the co- sine ...
... tangent , DI its co - tangent ; CK its secant , and CI its co - secant . fig . 8 . fir . 8 . D FXH 6 B F 1. The co - sine of an arc is to the sine , as radius is to the tangent . 2. Radius is to the tangent of an arc , as the co- sine ...
Página 55
... tangent 4. Or radius is to the co - tangent of an arc , as its sine is to its co - sine . 5. The co - tangent of an arc is to radius , as radius to the tangent . 6. The co - sine of an arc is to radius , as radius is to the secant . 7 ...
... tangent 4. Or radius is to the co - tangent of an arc , as its sine is to its co - sine . 5. The co - tangent of an arc is to radius , as radius to the tangent . 6. The co - sine of an arc is to radius , as radius is to the secant . 7 ...
Página 70
... tangents , and secants , to any radius , fig . 60 , MO Secants 10 09 60 . 80 8070 Tangents 60 70 PROBLEMS .
... tangents , and secants , to any radius , fig . 60 , MO Secants 10 09 60 . 80 8070 Tangents 60 70 PROBLEMS .
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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