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 |
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Σελίδα 13
... parts , this number is called the denominator ; and if we chuse to take any number of such parts less than the whole , this is called the numerator of a fraction , The numerator in the vulgar form is always wrote over THE ...
... parts , this number is called the denominator ; and if we chuse to take any number of such parts less than the whole , this is called the numerator of a fraction , The numerator in the vulgar form is always wrote over THE ...
Σελίδα 15
... less , while the denomination of it increases , and becomes so many times greater , by prefixing one , or two , or three cyphers to it ; and that any number of cyphers , before an integer , or after a decimal fraction , has no effect in ...
... less , while the denomination of it increases , and becomes so many times greater , by prefixing one , or two , or three cyphers to it ; and that any number of cyphers , before an integer , or after a decimal fraction , has no effect in ...
Σελίδα 30
... An obtuse angle is that which is greater than than a right one , as the angle ADE , fig . 7. and an acute an- gle is less than a right one , as EDB , fig . 7 . 13. Acute and obtuse angles in general are called oblique 30 GEOMETRY .
... An obtuse angle is that which is greater than than a right one , as the angle ADE , fig . 7. and an acute an- gle is less than a right one , as EDB , fig . 7 . 13. Acute and obtuse angles in general are called oblique 30 GEOMETRY .
Σελίδα 44
... less than a semicircle , therefore half the arc AB , or the angle ADB is less than half a semicircle , and consequently less than a right angle . fig . 26 . Cor . 4. An angle in a segment less than a semicircle , is greater than a right ...
... less than a semicircle , therefore half the arc AB , or the angle ADB is less than half a semicircle , and consequently less than a right angle . fig . 26 . Cor . 4. An angle in a segment less than a semicircle , is greater than a right ...
Σελίδα 47
... less , which is absurd , whence IK is not parallel ; and the like we can prove of all other lines but AB ; therefore AB is parallel to CD . Q. E. D. THEOREM XII . If two equal and parallel lines AB , CD be joined by two other lines AD ...
... less , which is absurd , whence IK is not parallel ; and the like we can prove of all other lines but AB ; therefore AB is parallel to CD . Q. E. D. THEOREM XII . If two equal and parallel lines AB , CD be joined by two other lines AD ...
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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 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