Rudimentary treatise on mensuration and measuring |
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Αποτελέσματα 1 - 5 από τα 16.
Σελίδα 5
... fall a perpendicular to a given line . 1 When the point is nearly opposite the middle of the line . From C , as a centre , describe an arc to cut AB in m and n ; -with centres m and n , and the same or any other radius , describe arcs ...
... fall a perpendicular to a given line . 1 When the point is nearly opposite the middle of the line . From C , as a centre , describe an arc to cut AB in m and n ; -with centres m and n , and the same or any other radius , describe arcs ...
Σελίδα 21
... fall ? Ans 6 inches nearly . 12. The upright axle of the horse - wheel of a thrashing machine is placed with its centre 34 yards from a wall ; but the shafts of the axle are 5 yards in length , measured from the cen- tre : how much of ...
... fall ? Ans 6 inches nearly . 12. The upright axle of the horse - wheel of a thrashing machine is placed with its centre 34 yards from a wall ; but the shafts of the axle are 5 yards in length , measured from the cen- tre : how much of ...
Σελίδα 24
... fall the perpendicular , as in Prob . V. PROBLEM IV . The side A B of a regular polygon being given to find the radi OC and O A of its inscribed and circumscribed circles . RULE . - Multiply the side of the polygon by the number op ...
... fall the perpendicular , as in Prob . V. PROBLEM IV . The side A B of a regular polygon being given to find the radi OC and O A of its inscribed and circumscribed circles . RULE . - Multiply the side of the polygon by the number op ...
Σελίδα 38
... fall on the diagonal , from the other two opposite angles , the sum of these perpendiculars being multiplied by the diagonal , half the product will be the area of the trapezium . CASE II . When two opposite angles are supplements of ...
... fall on the diagonal , from the other two opposite angles , the sum of these perpendiculars being multiplied by the diagonal , half the product will be the area of the trapezium . CASE II . When two opposite angles are supplements of ...
Σελίδα 39
... fall on it 28 and 38.5 feet ? Ans . 240 1388 yards . 5. What is the area of a trapezium , the south side being 27.40 chains , east side 35.75 chains , north side 37.55 chains , west side 41.05 chains , and the diagonal from south - west ...
... fall on it 28 and 38.5 feet ? Ans . 240 1388 yards . 5. What is the area of a trapezium , the south side being 27.40 chains , east side 35.75 chains , north side 37.55 chains , west side 41.05 chains , and the diagonal from south - west ...
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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.