The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this ArtJ.J. Harper, 1828 - 435 σελίδες |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 50.
Σελίδα 103
... Tang . of 64 ° 2 ' sum 10.312431 = Whose double 128 ° 4 ' is the angle ABC . Whence the other angles can be easily found by theo . 1. of this section . * An example in each case of oblique - angled triangles . 1. In the triangle ABC ...
... Tang . of 64 ° 2 ' sum 10.312431 = Whose double 128 ° 4 ' is the angle ABC . Whence the other angles can be easily found by theo . 1. of this section . * An example in each case of oblique - angled triangles . 1. In the triangle ABC ...
Σελίδα 156
... Tang . of 45 ° ) Is to the sine of any angle of a parallelogram So is the product of the sides including the angle : To the area of the parallelogram . * That is DA × AB × nat . sine of the angle A - the area . Pl . 7 , fig . 2 ...
... Tang . of 45 ° ) Is to the sine of any angle of a parallelogram So is the product of the sides including the angle : To the area of the parallelogram . * That is DA × AB × nat . sine of the angle A - the area . Pl . 7 , fig . 2 ...
Σελίδα 168
... ( tang . tang . of 2 = 46 ° 15 ′ ) : 1.0446136 × 3 161 = . = .01946485 = the = 1 ° 07 ' . Wherefore LBDC = 46 ° 15 ' + 1 ° 07 ' - 47 ° 22 ' = ( ADC - CDB = 73 ° -47 ° 22 ' = ) 25 ° 38 ' . But BDC 47 ° 22 ′ LC 87 ° 30 ' CB 20.5 9.8667026 ...
... ( tang . tang . of 2 = 46 ° 15 ′ ) : 1.0446136 × 3 161 = . = .01946485 = the = 1 ° 07 ' . Wherefore LBDC = 46 ° 15 ' + 1 ° 07 ' - 47 ° 22 ' = ( ADC - CDB = 73 ° -47 ° 22 ' = ) 25 ° 38 ' . But BDC 47 ° 22 ′ LC 87 ° 30 ' CB 20.5 9.8667026 ...
Σελίδα 215
... Tang . Bear . 61 ° 15 ′ Answer , { As S. Bear . 61 ° 15 ' : Depart . 99.5 :: Radius S. 90 deg . : Distance IN runs N. 61 ° 15 ' E. 113.49 NI runs S. 61 15 W. 113.5 per . In the part IABCI , the difference between the northings and the ...
... Tang . Bear . 61 ° 15 ′ Answer , { As S. Bear . 61 ° 15 ' : Depart . 99.5 :: Radius S. 90 deg . : Distance IN runs N. 61 ° 15 ' E. 113.49 NI runs S. 61 15 W. 113.5 per . In the part IABCI , the difference between the northings and the ...
Σελίδα 272
... tang . of 42 50 10.032877 secant of 19 27 10.025519 co - secant of 70 83 10.025519 siné of 108 S6 or sine of or co - sine of 71 24 18 86 9.976702 Co - sine , & c . To find the Degrees and Minutes nearest corresponding to a given ...
... tang . of 42 50 10.032877 secant of 19 27 10.025519 co - secant of 70 83 10.025519 siné of 108 S6 or sine of or co - sine of 71 24 18 86 9.976702 Co - sine , & c . To find the Degrees and Minutes nearest corresponding to a given ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
ABCD acres altitude Answer arch base bearing centre chains and links circle circumferentor Co-sec Co-tang column compasses contained cube root decimal difference of latitude Dist divided divisions divisor draw east Ecliptic edge EXAMPLE feet field-book figure four-pole chains given angle given number half the sum height Hence Horizon glass hypothenuse inches instrument length logarithm measure Meridian Altitude meridian distance method multiplied natural co-sine natural number natural sine Nonius number of degrees object observed off-sets opposite parallel parallelogram perches perpendicular plane prob PROBLEM proportional protractor Quadrant quotient radius rhombus right angles right line Secant sect semicircle Sextant side square root station subtract Sun's survey taken Tang tangent theo theodolite THEOREM trapezium triangle ABC trigonometry two-pole chains vane versed sine vulgar fraction whence