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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Αποτελέσματα 1 - 5 από τα 62.
Σελίδα 10
... perch , & c . or of whatever the whole thing originally was . Fractions are expressed in two forms , that is , ei- ther vulgarly or decimally . All fractions whose denominators do not consist of a cypher or cyphers set after unity , are ...
... perch , & c . or of whatever the whole thing originally was . Fractions are expressed in two forms , that is , ei- ther vulgarly or decimally . All fractions whose denominators do not consist of a cypher or cyphers set after unity , are ...
Σελίδα 18
... perch , & c . is equal to one fourth of three shillings , yards . perches , & c . therefore if 8 be divided by 3 , the quotient will be the answer . 3 Reduce to a decimal fraction . 5 ) 2 0.4 Answer . Reduce to a decimal fraction . 25 ...
... perch , & c . is equal to one fourth of three shillings , yards . perches , & c . therefore if 8 be divided by 3 , the quotient will be the answer . 3 Reduce to a decimal fraction . 5 ) 2 0.4 Answer . Reduce to a decimal fraction . 25 ...
Σελίδα 72
... perches , or miles , ) as the respective number at the end of each expresses ; but in the surveying way , they are counted to be so many perches to an 72 PROBLEMS .
... perches , or miles , ) as the respective number at the end of each expresses ; but in the surveying way , they are counted to be so many perches to an 72 PROBLEMS .
Σελίδα 73
... perches to an inch ; and are thus counted : every large division is 10 , every one of the subdivisions is 1 , and every one downwards is one tenth of a perch ; or sometimes thus , every large division is called 100 , every subdi- vision ...
... perches to an inch ; and are thus counted : every large division is 10 , every one of the subdivisions is 1 , and every one downwards is one tenth of a perch ; or sometimes thus , every large division is called 100 , every subdi- vision ...
Σελίδα 97
... perches or miles , & c . and this mark ° , either in an angle or on a side , ' denotes the angle or side required . From these proportions it may be observed ; that to find a side , when the angles and one side are given , any side may ...
... perches or miles , & c . and this mark ° , either in an angle or on a side , ' denotes the angle or side required . From these proportions it may be observed ; that to find a side , when the angles and one side are given , any side may ...
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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