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, Volum 2W. Hilliard, 1808 |
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Side 123
... Draw AF perpendicular to AB , then , from the principles of Geometry , it is known , that CF = FA ; draw also the ra- dius CD , which will be perpendicular to CB . B F A D E Hence from 90 ° 00 ' 00 " Take ZB 87 25 55 < D or AFB 2 34 5 ...
... Draw AF perpendicular to AB , then , from the principles of Geometry , it is known , that CF = FA ; draw also the ra- dius CD , which will be perpendicular to CB . B F A D E Hence from 90 ° 00 ' 00 " Take ZB 87 25 55 < D or AFB 2 34 5 ...
Side 131
... drawn from different stations . When one paper is full , and there is occasion for more , draw a line in any manner through the farthest point of the last station line , to which the work can be convenient- ly laid down ; take the sheet ...
... drawn from different stations . When one paper is full , and there is occasion for more , draw a line in any manner through the farthest point of the last station line , to which the work can be convenient- ly laid down ; take the sheet ...
Side 132
... drawing the lines , in the same position , is to draw them both parallel to the same sides of the table , by means of the equal divisions marked on the other two sides . 3. THE THEODOLITE . The theodolite is a brazen circular ring ...
... drawing the lines , in the same position , is to draw them both parallel to the same sides of the table , by means of the equal divisions marked on the other two sides . 3. THE THEODOLITE . The theodolite is a brazen circular ring ...
Side 145
... draw the line so , that all the perpendiculars may fall within the figure . - Thus , in the following figure , beginning at A , and measuring along the line AG , we find the distances and perpendiculars , on the right and left , to be ...
... draw the line so , that all the perpendiculars may fall within the figure . - Thus , in the following figure , beginning at A , and measuring along the line AG , we find the distances and perpendiculars , on the right and left , to be ...
Side 146
... draw a dry or obscure line ; then measure the distance CD , and lay that distance down on the line CD . Then turn the index about the point C till the mark E be seen through the sights , by which draw a line , and measure the distance ...
... draw a dry or obscure line ; then measure the distance CD , and lay that distance down on the line CD . Then turn the index about the point C till the mark E be seen through the sights , by which draw a line , and measure the distance ...
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Mathematics: Compiled from the Best Authors, and Intended to be the ..., Volum 1 Samuel Webber Uten tilgangsbegrensning - 1808 |
Vanlige uttrykk og setninger
abscisses altitude axis azimuth base Ca² cask centre complement cone conjugate cosine course curve DE³ declination departure describe dial diameter diff difference of latitude difference of longitude distance divide draw the parallel drawn ecliptic ellipse equal equinoctial EXAMPLES feet figure find the rest frustum height Hence horizon hour angle hour lines hyperbola hypotenuse inches intersection LATITUDE SAILING length measure Mercator's meridional difference middle latitude miles multiply NOTE oblique circle opposite ordinates parabola parallel of latitude parallel sailing perpendicular plane sailing pole prime vertical primitive Prob PROBLEM projection Prop proportional Q. E. D. COR quadrant radius rectangle Required the content rhumb right ascension right circle right line rule secant segment Side AC sine sphere spheric triangle spindle square star station Stereographic Projection stile sun's tance tang tangent THEOREM vertical
Populære avsnitt
Side 3 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Side 147 - 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.
Side 8 - Take the length of the keel within board (so much as she treads on the ground) and the breadth within board by the midship beam, from plank to plank, and half the breadth for the depth, then multiply the length by the breadth, and that product by the depth, and divide the whole by 94; the quotient will give the true contents of the tonnage.
Side 59 - ... small statue, the head of which is 97 feet from the summit of the higher, and 86 feet from the top of the lower column, the base of which measures just 16 feet to the centre of the figure's base. Required the distance between the tops of the two columns ? Ans.
Side 61 - A gentleman has a garden 100 feet long, and 80 feet broad ; and a gravel walk is to be made of an equal width half round it ; what must the breadth of the walk be to take up just half the ground? Ans. 25-968 feet.
Side 63 - If a heavy sphere, whose diameter is 4 inches, be let fall into a conical glass, full of water, whose diameter is 5, and altitude 6 inches ; it is required to determine how much water will run over ? AHS.
Side 62 - Ans. the upper part 13'867. the middle part 3 '605. the lower part 2-528. QUES J. 48. A gentleman has a bowling green, 300 feet long, and 200 feet broad, which he would raise 1 foot higher, by means of the earth to be dug out of a ditch that goes round it: to what depth must the ditch be dug, supposing its breadth to be every where 8 feet ? Ans.
Side 21 - ... 07958 in using the circumferences ; then taking one-third of the product, to multiply by the length, for the content. Ex. 1. To find the number of solid feet in a piece of timber, whose bases are squares, each side of the greater end being 15 inches, and each side of the less end 6 inches ; also, the length or the perpendicular altitude 24 feet.
Side 187 - AC 2AC nearly ; that is, the difference between the true and apparent level is equal to the square of the distance between the places, divided by the diameter of the earth ; and consequently it is always proportional to the square of the distance.
Side 29 - ... -5236, for the content. RULE II. To 3 times the square of the radius of the segment's base, add the square of its height ; then multiply the sum by the height, and the product by -5236, for the content.