Rudimentary treatise on mensuration and measuring |
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Σελίδα 3
... radius . If a radius CD be drawn at right angles to A B , it will divide the semicircle into two equal parts , each of which is called a quadrant , or one fourth of a circle . A chord is a right line joining the extremities of an arc ...
... radius . If a radius CD be drawn at right angles to A B , it will divide the semicircle into two equal parts , each of which is called a quadrant , or one fourth of a circle . A chord is a right line joining the extremities of an arc ...
Σελίδα 4
... radius , or opening of the compasses , greater than half A B , describe two arcs , cutting each other in C and D ; draw CD , and it will cut AB in the middle point E. PROBLEM II . At a given distance E , to draw a straight line CD ...
... radius , or opening of the compasses , greater than half A B , describe two arcs , cutting each other in C and D ; draw CD , and it will cut AB in the middle point E. PROBLEM II . At a given distance E , to draw a straight line CD ...
Σελίδα 5
... radius , de- scribe the arc nrs ; -from the point n , with the same radius , turn the compasses twice on the arc , as at r and s : —again , with centres r and s , describe arcs inter- secting in C - draw CP , and it will be the ...
... radius , de- scribe the arc nrs ; -from the point n , with the same radius , turn the compasses twice on the arc , as at r and s : —again , with centres r and s , describe arcs inter- secting in C - draw CP , and it will be the ...
Σελίδα 6
... radius B C describe an arc ; and with centre C and radius AB describe another arc , cutting the former in D : join AD , DC to complete the rectangle . PROBLEM X. The base and two perpendiculars being given to construct a trapezoid . Ꭰ ...
... radius B C describe an arc ; and with centre C and radius AB describe another arc , cutting the former in D : join AD , DC to complete the rectangle . PROBLEM X. The base and two perpendiculars being given to construct a trapezoid . Ꭰ ...
Σελίδα 7
... radius , describe arcs inter- secting in m . Draw the line B m , and it will bisect the angle as re- quired . PROBLEM XIV . E m To set off an angle to contain a given number of degrees . Let the angle be required to contain 41 degrees ...
... radius , describe arcs inter- secting in m . Draw the line B m , and it will bisect the angle as re- quired . PROBLEM XIV . E m To set off an angle to contain a given number of degrees . Let the angle be required to contain 41 degrees ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
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.