Mathematics: Compiled from the Best Authors and Intended to be the Text-book of the Course of Private Lectures on These Sciences in the University at Cambridge, Τόμος 2Printed at the University Press, by WilliamHilliard, 1801 |
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Αποτελέσματα 1 - 5 από τα 100.
Σελίδα 9
... right angle is therefore an angle of 90 degrees ; and the sum of the three angles of every triangle , or two right angles , is equal to 180 ° . Wherefore , in a right - angled triangle , one acute angle being subtracted from 90 ° , the ...
... right angle is therefore an angle of 90 degrees ; and the sum of the three angles of every triangle , or two right angles , is equal to 180 ° . Wherefore , in a right - angled triangle , one acute angle being subtracted from 90 ° , the ...
Σελίδα 13
... angle and its opposite side shall be two of them ; to find the rest . In any plane triangle , the sides are proportional to the sines of their opposite angles . * That is , As one side Is to another side So is sin . angle ... right angle , or ...
... angle and its opposite side shall be two of them ; to find the rest . In any plane triangle , the sides are proportional to the sines of their opposite angles . * That is , As one side Is to another side So is sin . angle ... right angle , or ...
Σελίδα 18
... angle . ! Then , all the angles being known , find the unknown side by the ... angle respectively , is evident from the figure . And that two quantities of ... right line CL . Then it is evident , that BLBC is the half sum , and BN the ...
... angle . ! Then , all the angles being known , find the unknown side by the ... angle respectively , is evident from the figure . And that two quantities of ... right line CL . Then it is evident , that BLBC is the half sum , and BN the ...
Σελίδα 19
... right - an- gled , the longest side will be found by extracting the square ... angle , which is the same thing , EXAMPLE 1 . In the plane triangle ABC ... angle A equal to 37 ° . 20 . 3. Make AC equal to 174'07 , by the scale of equal ...
... right - an- gled , the longest side will be found by extracting the square ... angle , which is the same thing , EXAMPLE 1 . In the plane triangle ABC ... angle A equal to 37 ° . 20 . 3. Make AC equal to 174'07 , by the scale of equal ...
Σελίδα 21
... angle to the opposite side or base , di- viding it into two segments , and the whole triangle into two right - angled triangles it will be As the base , or sum of the segments Is to the sum of the other two sides So is the difference of ...
... angle to the opposite side or base , di- viding it into two segments , and the whole triangle into two right - angled triangles it will be As the base , or sum of the segments Is to the sum of the other two sides So is the difference of ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
abscisses ADBA altitude angle answer axes axis azimuth base breadth bung diameter cask centre chord circumference cone conjugate cosine course curve declination departure dial diff difference of latitude difference of longitude distance divided draw drawn ecliptic ellipse equal equinoctial EXAMPLES feet figure find the area find the solidity frustum given head diameter height Hence horizon hour angle hour lines hyperbola hypotenuse intersection latit measure meridian middle latitude miles multiply the sum NOTE oblique circle opposite ordinate parabola parallel of latitude parallel sailing parallelogram perpendicular plane sailing pole primitive PROBLEM PROBLEM projection proportion quadrant radius rectangle Required the area Required the content right ascension right line RULE secant segment side sphere spherical triangle spindle square star station stile subtract sun's tance tang tangent THEOREM transverse trapezium triangle ABC ullage wine gallons yards
Δημοφιλή αποσπάσματα
Σελίδα 21 - As the base or sum of the segments Is to the sum of the other two sides, So is the difference of those sides To the difference of the segments of the base.
Σελίδα 17 - To find the other side: — as the sum of the two given sides is to their difference, so is the tangent of half the sum of their opposite angles to the tangent of half their difference...
Σελίδα 83 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Σελίδα 328 - The conjugate to any diameter is the line drawn through the centre, and parallel to the tangent of the curve at the vertex of the diameter. So...
Σελίδα 28 - But if the hypothenuse be made radius -, then each leg "will represent the sine of its opposite angle ; namely, the leg AB the sine of the arc AE or angle c, and the leg BC the sine of the arc CD or angle A.
Σελίδα 83 - The axis of a solid is a line drawn from the middle of one end to the middle of the opposite end ; as between the opposite ends of a prism.
Σελίδα 83 - The sphere may be conceived to be formed by the revolution of a semicircle about its diameter, which remains fixed.
Σελίδα 130 - Between these, in a right line, stands an ancient statue, the head whereof is 97 feet from the summit of the higher, and 86 feet from the top of the lower column, and the distance between the...
Σελίδα 205 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Σελίδα 38 - Multiply the sum of the two parallel sides by the perpendicular distance between them, and half the product will be the area.