A Synopsis of Practical Mathematics: Containing Plain Trigonometry; Mensuration of Heights, Distances, Surfaces, and Solids; Surveying of Land, Gauging, Navigation, and Gunnery. With Tables of the Logarithms of Numbers, and of Sines and Tangents. For the Use of Schools and Men of BusinessT. Cadell, London, and C. Elliot, Edinburgh, 1779 - 266 σελίδες |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 43.
Σελίδα 21
... ob- lique angled ; and each kind hath several cases . 24. Similar triangles are those which have their angles equal , each to its correspondent angle . The 25. The fides about the equal angles of fimilar tri- PLAIN TRIGONOMETRY . 21.
... ob- lique angled ; and each kind hath several cases . 24. Similar triangles are those which have their angles equal , each to its correspondent angle . The 25. The fides about the equal angles of fimilar tri- PLAIN TRIGONOMETRY . 21.
Σελίδα 22
... of the tables of fines and tangents , commonly called the Trigonometrical Canon ; and is generally supposed to consist of 100000000 equal parts . RIGHT ANGLED TRIANGLES . CASE I. Fig . 27 . RIGHT 22 PLAIN TRIGONOMETRY .
... of the tables of fines and tangents , commonly called the Trigonometrical Canon ; and is generally supposed to consist of 100000000 equal parts . RIGHT ANGLED TRIANGLES . CASE I. Fig . 27 . RIGHT 22 PLAIN TRIGONOMETRY .
Σελίδα 23
... CASE I. Fig . 27 . In the right angled plain triangle ABC , suppose the two fides AB and BC were given , and it were required to find the angles at A and C. If the given fides are equal between themselves , each of the acute angles is ...
... CASE I. Fig . 27 . In the right angled plain triangle ABC , suppose the two fides AB and BC were given , and it were required to find the angles at A and C. If the given fides are equal between themselves , each of the acute angles is ...
Σελίδα 24
... CASE II . Fig . 28 . In the right angled plain triangle ABC , fuppofe the hypothenufe AC and the fide AB were given , and it were required to find the angles at A and C. As the hypothenuse AC Is to the fide AB , So is the radius To the ...
... CASE II . Fig . 28 . In the right angled plain triangle ABC , fuppofe the hypothenufe AC and the fide AB were given , and it were required to find the angles at A and C. As the hypothenuse AC Is to the fide AB , So is the radius To the ...
Σελίδα 25
... Case , Rad . : Sine A :: AC : CB , EXAMPLES in right angled Triangles . CASE 1. Fig . 27. In the right angled triangle ABC , there is given the fide AB = 429 , and BC = 316 , to find the angles at A and C. D Making Making AB Radius , we ...
... Case , Rad . : Sine A :: AC : CB , EXAMPLES in right angled Triangles . CASE 1. Fig . 27. In the right angled triangle ABC , there is given the fide AB = 429 , and BC = 316 , to find the angles at A and C. D Making Making AB Radius , we ...
Άλλες εκδόσεις - Προβολή όλων
A Synopsis of Practical Mathematics: Containing Plain Trigonometry ... Alexander Ewing Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Συχνά εμφανιζόμενοι όροι και φράσεις
acres alfo alſo altitude amplitude angle ABC angle BAC anſwer arithmetical mean azimuth bafe baſe becauſe breadth chain circle circumference cofine Comp courfe courſe cubic inches defcribe Degrees diameter diff difference of latitude diſtance divide ecliptic elevation Engliſh equal EXAM fame fecant feconds fegment feries fhip from latitude fide AC fimilar find the angles find the area find the folidity find the logarithm firft folid content fome fouth fquare feet fquare links fquare root fruftum ftation fubtract fuch fun's fuperficies given globe half fum height horizontal latitude and departure lefs length longitude meaſure meridian miles multiply muſt Octahedron oppofite parallelogram perpendicular plain triangle pole PROB quotient radius regular polygon required to find right angled triangle right line roods ſcale Scots Sine ſquare Suppofe Tangent Tangent30 thefe theſe triangle ABC veffel weft whofe whoſe yards zone
Δημοφιλή αποσπάσματα
Σελίδα 258 - And in division, subtract the logarithm of the divisor from the logarithm of the dividend, the remainder is the logarithm of the quotient.
Σελίδα 259 - Rule. Multiply the Logarithm of the given number by the Index of the proposed power, and the product will be the Logarithm, whose natural number is the power required.
Σελίδα 18 - The diameter of a circle is a right line drawn through the centre, and terminating in the circumference on each side, as AB.
Σελίδα 177 - Circles are great circles which pass through the zenith and nadir, and cut the horizon at right angles.
Σελίδα 176 - Zone, between the Tropic of Cancer and the Arctic Circle, is called the North Temperate Zone, and...
Σελίδα 259 - Complement of a Logarithm. Begin at the left hand, and write down what each figure wants of 9, only what the laft fignificant figure wants of ю j fo the Сотр.
Σελίδα 18 - The sine of an arc is a line drawn from one end of the arc, perpendicular to the radius or diameter drawn through the other end : or, it is half the chord of double the arc ; thus HL is the sine of the arc HB.
Σελίδα 131 - Becaufe every cone is the third part of a cylinder of the fame bafe and altitude, Multiply the area of its bafe by one third part of its height ; the product is the foiidity.
Σελίδα 204 - ... 9" with the meridian. And 3dly. That the differences of longitude on different rumbs, are to one another as the tangents of the angles of those rumbs with the meridian. Hence it follows, that the difference of the log. tangents of the half complements of the latitudes, is to the difference of longitude a ship makes...
Σελίδα 256 - If the logarithm is not found exa£Uy in the tables, and more than four figures are required, fubtraft the logarithm found in the table from the given one, and divide the remainder by the difference between the logarithm found and the next greater ; the quotient joined to the four figures already found, gives the number anfwering to the logarithm. EXAMPLES. To find the number anfwering to the logarithm 2.7342957.