A Treatise on Mensuration, Both in Theory and PracticeG. G. J. and J. Robinson, and R. Baldwin; and G. and T. Wilkie, 1788 - 703 Seiten |
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Seite x
... divided , the fame feries very rarely including them both . The mathema- ticians in moft parts of Europe now applied themselves di- ligently to thefe new discoveries , and many feries were affigned on all hands , fome admired for their ...
... divided , the fame feries very rarely including them both . The mathema- ticians in moft parts of Europe now applied themselves di- ligently to thefe new discoveries , and many feries were affigned on all hands , fome admired for their ...
Seite xii
... divided into three fections . Sect . 1. Contains feveral geometrical definitions and problems ; fome of which are new , and , it is prefumed , they are all more complete , and lefs exceptionable , than thofe instead of which they have ...
... divided into three fections . Sect . 1. Contains feveral geometrical definitions and problems ; fome of which are new , and , it is prefumed , they are all more complete , and lefs exceptionable , than thofe instead of which they have ...
Seite xiii
... divided into 8 fections . Sect . 1. Treats of bodies that are bounded by right or circular lines , viz . prifms , pyramids , the fphere , and the circular spindle . Sect . 2. Treats of the five regular folids or bodies . Sect . 3 ...
... divided into 8 fections . Sect . 1. Treats of bodies that are bounded by right or circular lines , viz . prifms , pyramids , the fphere , and the circular spindle . Sect . 2. Treats of the five regular folids or bodies . Sect . 3 ...
Seite xvi
... divided into several Varieties Of gauging Cafks by their Mean Diameters gauge any Cafk by Four Dimenfions Το To gauge any Cafk by Three Dimensions only The fame , by another new and eafy Method Of the Ullage of Cafks A TREATIS E O.N ...
... divided into several Varieties Of gauging Cafks by their Mean Diameters gauge any Cafk by Four Dimenfions Το To gauge any Cafk by Three Dimensions only The fame , by another new and eafy Method Of the Ullage of Cafks A TREATIS E O.N ...
Seite 7
... divided into 360 equal parts , called degrees ; and each degree into 60 minutes , each minute into 60 feconds , and so on . Hence a femicircle contains 180 de- grees , and a quadrant 90 degrees . 57. The measure of a right - lined angle ...
... divided into 360 equal parts , called degrees ; and each degree into 60 minutes , each minute into 60 feconds , and so on . Hence a femicircle contains 180 de- grees , and a quadrant 90 degrees . 57. The measure of a right - lined angle ...
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Seite 535 - ... being entirely dependent on them, and therefore they should be taken of as great length as possible ; and it is best for them to run along some of the hedges or boundaries of one or more fields, or to pass through some of their angles. All things being determined for these stations, you must take more inner stations, and continue to divide and subdivide, till at last you come to single fields ; repeating the same work for the inner stations as for the outer ones, till the whole is finished.
Seite 91 - The area of a rectangle is equal to the product of its base and altitude. Given R a rectangle with base b and altitude a. To prove R = a X b. Proof. Let U be the unit of surface. .R axb U' Then 1x1 But - is the area of R.
Seite 2 - A Right Angle is that which is made by one line perpendicular to another. Or when the angles on each side are equal to one another, they are right angles.
Seite 614 - ... for the double row of slates at the bottom, or for how much one row of slates or tiles is laid over another. When the roof is of a true pitch, that is, forming a right angle at top ; then the breadth of the building, with its half added, is the girt over both sides nearly.
Seite 617 - The length of a room being 20 feet, its breadth 14 feet 6 inches, and height 10 feet 4 inches ; how many yards of painting are in it, deducting a...
Seite 6 - A quadrant, or quarter of a circle, is a sector, having a quarter of the circumference for its arc, and the two radii are perpendicular to each other, as G.
Seite 608 - Chimneys are commonly measured as if they were solid, deducting only the vacuity from the hearth to the mantle, on account of the trouble of them. All windows, doors, &c, are to be deducted out of the contents of the walls in which they are placed.
Seite 62 - From the edge of a ditch 18 feet wide, surrounding a fort, I took the angle of elevation of the top of the wall and found it 62° 40...
Seite 7 - The Measure of an angle, is an arc of any circle contained between the two lines which form that angle, the angular point being the centre ; and it is estimated by the number of degrees contained in that arc.
Seite 461 - Ans. the upper part 13'867. the middle part 3 '605. the lower part 2-528. QUEST. 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 i Ans. 7f-| feet. QUEST. 49. How high above the earth must a person be raised, that he may see j. of its surface ? Ans. to the height of the earth's diameter.