A Complete System of Mensuration ...1851 |
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Página 47
... field ABCDE , I measured along the dia- gonal AC ; and at b , 326 links from A , I took the perpendicular 6E , 97 ... field ABCDEFG , of which are given the sides AB 854 and CD 927 links , the diagonals BG 1167 , BF 1037 , CF 1284 , and ...
... field ABCDE , I measured along the dia- gonal AC ; and at b , 326 links from A , I took the perpendicular 6E , 97 ... field ABCDEFG , of which are given the sides AB 854 and CD 927 links , the diagonals BG 1167 , BF 1037 , CF 1284 , and ...
Página 103
... fields , & c . on the surface of the earth . For this purpose , various instruments are used for measur- ing lines and angles . OF INSTRUMENTS USED FOR MEASURING LINES . Straight lines are measured by applying to them a line of known ...
... fields , & c . on the surface of the earth . For this purpose , various instruments are used for measur- ing lines and angles . OF INSTRUMENTS USED FOR MEASURING LINES . Straight lines are measured by applying to them a line of known ...
Página 104
... field are taken either in a vertical or in a horizontal plane . The former are measured by a Quadrant , and the latter by a Theodolite or Circle . A QUADRANT is the fourth part of a circle of any conve nient radius . It is made of brass ...
... field are taken either in a vertical or in a horizontal plane . The former are measured by a Quadrant , and the latter by a Theodolite or Circle . A QUADRANT is the fourth part of a circle of any conve nient radius . It is made of brass ...
Página 106
... field ; and , in like manner , a given angle may be formed in the field by the table . Also , a perpendi- cular may be drawn in the field with it , by placing the centre of the instrument at the given point , and turning it , till the ...
... field ; and , in like manner , a given angle may be formed in the field by the table . Also , a perpendi- cular may be drawn in the field with it , by placing the centre of the instrument at the given point , and turning it , till the ...
Página 107
... field . Erect poles at the extremities , and at convenient distances along the line , for showing the direction . Ten arrows of iron or wood are used for marking the spot to which the chain extends , and for preserving the number of ...
... field . Erect poles at the extremities , and at convenient distances along the line , for showing the direction . Ten arrows of iron or wood are used for marking the spot to which the chain extends , and for preserving the number of ...
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Términos y frases comunes
18 feet 18 inches 20 feet 9 inches ABCD acres arch arithm axis base base 36 bound breadth central distance centre chord circle circular circumference cosine cubic feet cubic inches curve cylinder diagonal divided double measure draw EDINBURGH ACADEMY ellipse equal feet 6 inches feet long find the area find the solid fleur-de-lis frustum Geom girt given gonal greatest diameter half the sum hyperbola hypotenuse inches broad logarithm mouldings multiply NOTE parabola parallel pentagonal pyramid perches perpendicular perpendicular height poles polygon PROB pyramid quotient radius Required the area Required the content Required the solid Required the surface right angle roods RULE segment side-walls sides solid content spheroid spindle square feet square foot square yard station straight line subtract taken tangent THEODOLITE thickness triangle ABC versed sine
Pasajes populares
Página 74 - To twice the length of the base add the length of the edge ; multiply the sum by the breadth of the base, and by one-sixth of the height.
Página 188 - I would have a square foot cut off parallel to the shorter edge ; I would then have the like quantity divided from the remainder parallel to the longer side...
Página 57 - So IS THE AREA OF THE CIRCLE, TO THE AREA OF THE SECTOR.
Página 64 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Página 12 - Quadrilateral ; of five sides a Pentagon ; of six sides a Hexagon ; of seven sides a Heptagon ; of eight sides an Octagon ; of nine sides a Nonagon ; of ten sides a Decagon ; of twelve sides a Dodecagon.
Página 71 - To find the solidity of a cone. RULE. Multiply the area of the base by the perpendicular height, and ^ of the product will be the solidity.
Página 36 - Art. 191. THE area or surface of a figure is the number of square inches, feet, yards, &c., which it contains. A square constructed upon a straight line, of which the length is an inch, is called a square inch; and the same is to be understood of a square foot, &c. This is called the measuring unit, and the area of any figure is the number of times it contains the measuring unit. Art. 192. To FIND THE AREA OF A TRIANGLE.
Página 144 - To prove that the exterior angle of a triangle is equal to the sum of the two interior opposite angles (see fig.
Página 33 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Página 88 - A SPHEROID is a solid, generated by the revolution of an ellipse about one of its diameters. If the ellipse revolves about its longer or...