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 17.
Σελίδα 50
... hypothenuse BC , join AH , AM , DC , and BG ; in the triangles , BDC , ABH , BD = BA , being sides of the same ... hypothenuse of a right - angled triangle may be found by having the sides ; thus , the square root of the sum of the ...
... hypothenuse BC , join AH , AM , DC , and BG ; in the triangles , BDC , ABH , BD = BA , being sides of the same ... hypothenuse of a right - angled triangle may be found by having the sides ; thus , the square root of the sum of the ...
Σελίδα 78
... hypothenuse AC be made the radius , and with it a circle , or an arc of one , be described from each end ; it is plain ( from def . 20. ) that BC is the sine of the angle A , and AB is the sine of the angle C ; that is , the legs are ...
... hypothenuse AC be made the radius , and with it a circle , or an arc of one , be described from each end ; it is plain ( from def . 20. ) that BC is the sine of the angle A , and AB is the sine of the angle C ; that is , the legs are ...
Σελίδα 80
... hypothenuse AC were given , to find the sides ; the proportion will be Fig 1 . 1. RAC :: S.A : BC . That is , as radius is to AC , so is the sine of the angle A to BC . And , 2. R : AC :: S.C : AB . That is , as radius is to AC , so is ...
... hypothenuse AC were given , to find the sides ; the proportion will be Fig 1 . 1. RAC :: S.A : BC . That is , as radius is to AC , so is the sine of the angle A to BC . And , 2. R : AC :: S.C : AB . That is , as radius is to AC , so is ...
Σελίδα 81
... hypothenuse given , to find the base and perpendicular . PL . 5. fig . 4 . In the right - angled triangle ABC , suppose the angle A = 46 ° 30 ; and consequently the angle C - 43 ° 30 ' ( by cor . 2 , theo . 5 ) ; and AC 250 parts , ( as ...
... hypothenuse given , to find the base and perpendicular . PL . 5. fig . 4 . In the right - angled triangle ABC , suppose the angle A = 46 ° 30 ; and consequently the angle C - 43 ° 30 ' ( by cor . 2 , theo . 5 ) ; and AC 250 parts , ( as ...
Σελίδα 84
... hypothenuse be multiplied by the natural sine of either of the acute angles , the product will be the length of the ... hypothenuse . PL . 5. fig . 5 . In the triangle ABC , there is the angle A 42 ° 20 ′ , and of course the angle C 47 ...
... hypothenuse be multiplied by the natural sine of either of the acute angles , the product will be the length of the ... hypothenuse . PL . 5. fig . 5 . In the triangle ABC , there is the angle A 42 ° 20 ′ , and of course the angle C 47 ...
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