Rudimentary treatise on mensuration and measuring |
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Σελίδα 1
... angle is formed by the meeting of two lines , as A C , CB . It is called the angle ACB , the letter at the angular point C being read in the middle . 7. A right angle is formed by one right line standing erect or perpendicular to an ...
... angle is formed by the meeting of two lines , as A C , CB . It is called the angle ACB , the letter at the angular point C being read in the middle . 7. A right angle is formed by one right line standing erect or perpendicular to an ...
Σελίδα 2
... angle , as A B C. The side A C , opposite the right angle , is called the hypothenuse ; the sides A B and B C are respectively called the base and perpendicular . 12. An obtuse angled triangle has one obtuse angle , as the angle at B ...
... angle , as A B C. The side A C , opposite the right angle , is called the hypothenuse ; the sides A B and B C are respectively called the base and perpendicular . 12. An obtuse angled triangle has one obtuse angle , as the angle at B ...
Σελίδα 3
... angle is an arc of any circle , contained between the two lines which form the angle , the angular point being the centre ; and is estimated by the number of degrees con- tained : -thus the arc AB , the centre of which is C , is the ...
... angle is an arc of any circle , contained between the two lines which form the angle , the angular point being the centre ; and is estimated by the number of degrees con- tained : -thus the arc AB , the centre of which is C , is the ...
Σελίδα 7
... angle to contain a given number of degrees . Let the angle be required to contain 41 degrees . Open the compasses to the extent of 60 ° upon the line of chords , and setting one foot upon A , with this extent , describe an arc cut- ting ...
... angle to contain a given number of degrees . Let the angle be required to contain 41 degrees . Open the compasses to the extent of 60 ° upon the line of chords , and setting one foot upon A , with this extent , describe an arc cut- ting ...
Σελίδα 8
... angle BA C. A right angle , or perpendicular , may be laid off by extending the arc B C , and setting off the extent of 90 ° thereon . Also an angle greater than 90 ° may be laid off , by still further extending the arc , and laying the ...
... angle BA C. A right angle , or perpendicular , may be laid off by extending the arc B C , and setting off the extent of 90 ° thereon . Also an angle greater than 90 ° may be laid off , by still further extending the arc , and laying the ...
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12 feet 20 feet A B C AMEN CORNER axis Baker's Land base bottom width centre chains Charles Tomlinson chord circle circular circumference content in cubic correction for curvature cubic feet cubic foot cubic yards curve decagon decimals depths diagonal diameter distance Duodecimals Engineering Surveying equal EXAMPLES feet 6 inches feet long figure find the area find the content find the solidity foot fore sights formula frustrum given ground half height instrument Land and Engineering length level book measured method miles multiply NOTE offsets parabola perpendicular polygon Prob PROBLEM pyramid quantity quarter girt radius railway cutting refraction required the area Required the content RULE RULE.-Multiply S. P. Woodward screws segment side slopes SLIDING RULE spirit level square feet square yards staves subtract Table tangent telescope trapezium VIRTUE BROTHERS W. D. Hamilton zone
Δημοφιλή αποσπάσματα
Σελίδα 3 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c.
Σελίδα 51 - The sphere may be conceived to be formed by the revolution of a semicircle about its diameter, which remains fixed.
Σελίδα 5 - Is. 6d. 76. GEOMETRY, DESCRIPTIVE, with a Theory of Shadows and Perspective, and a Description of the Principles and Practice of Isometrical Projection, by JF Heather.
Σελίδα 51 - 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 4 - SHIP-BUILDING AND NAVIGATION. 51. NAVAL ARCHITECTURE, by J. Peake. 3s. 53*. SHIPS FOR OCEAN AND RIVER SERVICE, Construction of, by Captain HA Sommerfeldt. Is. 53**.
Σελίδα 145 - EMIGRANT'S GUIDE TO TASMANIA AND NEW ZEALAND, by James Baird, BA [In Preparation. FINE ARTS. 20. PERSPECTIVE, by George Pyne. 2s. 27. PAINTING ; or, A GRAMMAR OF COLOURING, by G. Field. 2s. 40. GLASS STAINING, by Dr. MA Gessert, with an Appendix on the Art of Enamel Painting, &c.
Σελίδα 81 - Large and plain articles are usually measured by the square foot or yard, &c; but enriched mouldings, and some other articles, are often estimated by running or lineal measure •, and some things are rated by the piece. In measuring of Joists...
Σελίδα 86 - GLAZIERS' WORK. — Glaziers take their dimensions either in feet, inches, and parts ; or feet, tenths, and hundredths. And they compute their work in square feet. In taking the length and breadth of a window, the cross bars between the squares are included. Also, windows of round or oval forms are measured as square, measuring them to their greatest length and breadth, on account of the waste in cutting the glass.