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 Joseph Cushing, 1816 - 472 σελίδες |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 47.
Σελίδα 29
... length without fig . 1 . A- B breadth . as AB . fig . 1. and 2 . 4. The extremities of a line are points , as the ex- tremities of the line AB are the points A and B. 5. A right line is the shortest that can be drawn between any two ...
... length without fig . 1 . A- B breadth . as AB . fig . 1. and 2 . 4. The extremities of a line are points , as the ex- tremities of the line AB are the points A and B. 5. A right line is the shortest that can be drawn between any two ...
Σελίδα 50
... length to the radius . fig . 38 . Thus in the circle AEBD , if the arc AEB be an arc of 60 degrees , and the chord AB be drawn ; then AB = CB = AC . fig . 33 . C B In the triangle ABC , the angle ACB is 60 degrees , being measured by ...
... length to the radius . fig . 38 . Thus in the circle AEBD , if the arc AEB be an arc of 60 degrees , and the chord AB be drawn ; then AB = CB = AC . fig . 33 . C B In the triangle ABC , the angle ACB is 60 degrees , being measured by ...
Σελίδα 72
... To measure a given angle ABC . fig . 57 . If the lines which include the angle , be not as long as the chord of 60 on your scale , produce them to that or a greater length , and between them so produced 72 PROBLEMS .
... To measure a given angle ABC . fig . 57 . If the lines which include the angle , be not as long as the chord of 60 on your scale , produce them to that or a greater length , and between them so produced 72 PROBLEMS .
Σελίδα 73
... length , and between them so produced , with the chord of 60 from B , describe the arc e d , which distance e d , measured on the same line of chords , gives the quantity of the angle BAC 48 de- grees , as required ; this is plain from ...
... length , and between them so produced , with the chord of 60 from B , describe the arc e d , which distance e d , measured on the same line of chords , gives the quantity of the angle BAC 48 de- grees , as required ; this is plain from ...
Σελίδα 77
... length of any line knowing the scale by which it was laid down ; and on the contrary , to set off any given distance from any scale . 墨 OF LOGARITHMS . IF to a series of numbers 1 PROBLEMS . 77 they are counted to be so many perches to ...
... length of any line knowing the scale by which it was laid down ; and on the contrary , to set off any given distance from any scale . 墨 OF LOGARITHMS . IF to a series of numbers 1 PROBLEMS . 77 they are counted to be so many perches to ...
Άλλες εκδόσεις - Προβολή όλων
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 50 Dist ABCD acres altitude annexed Answer base bearing bisect blank line centre chains and links chord circle circumferentor Co-secant Secant Co-sine Co-tang column contained cyphers decimal decimal fraction Dep Lat difference 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 magnetical measure meridian distance multiplied needle number of degrees object off-sets parallel parallelogram perpendicular piece of ground plane Portmarnock PROB proportion protractor quotient radius right angles right line scale of equal SCHOLIUM sect semicircle side sights sine square root stationary distance sun's suppose survey taken tance Tang tangent thence theo theodolite THEOREM thro trapezium triangle ABC trigonometry true amplitude true azimuth two-pole chains vane variation whence