# Mathematics, Volum 2

W. Hilliard, 1808

### Què opinen els usuaris -Escriviu una ressenya

No hem trobat cap ressenya als llocs habituals.

### Continguts

 ºr 4 GAUGING 73 HEIGHTS AND DISTANCES 91 SURVEYING 129 Practice of Surveying 137 Planning and Computing 168 Division of Land 182 Levelling 188
 CONIC SECTIONS 271 Ellipse 278 Hyperbola e 325 DIALING 337 SPHERIC GEOMETRY 367 Stereographic Projection 373 Projections of the Sphere e 392 Definitions 409

 Plane Chart e s e e e e e 193 Oblique Plane Sailing 208 Traverse Sailing 223 Parallel Sailing e 230 Mercators Sailing 237
 Rectangular Spheric Trigonometry e 418 Rectilateral Spheric Trigonometry 434 Questions for practice o 457 Problems e 465

### Passatges populars

Pàgina 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.
Pàgina 145 - 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.
Pàgina 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.
Pàgina 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.
Pàgina 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.
Pàgina 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.
Pàgina 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.
Pàgina 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.
Pàgina 185 - 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.
Pàgina 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.