A Treatise of Practical Surveying, ...1808 - 440 σελίδες |
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Σελίδα 174
... acre , it must thence follow , that Any area , or content in perches , being divided by 160 , will give the content in acres ; the remain- ing perches , if more than 40 , being divided by 40 , will give the roods , and the last ...
... acre , it must thence follow , that Any area , or content in perches , being divided by 160 , will give the content in acres ; the remain- ing perches , if more than 40 , being divided by 40 , will give the roods , and the last ...
Σελίδα 175
Robert Gibson. resting to the left are acres , because 10 square four - pole chains make an acre , and the remaining figures are decimal parts of an acre . Multiply the five figures to the right by 4 , cutting 5 fi- gures from the ...
Robert Gibson. resting to the left are acres , because 10 square four - pole chains make an acre , and the remaining figures are decimal parts of an acre . Multiply the five figures to the right by 4 , cutting 5 fi- gures from the ...
Σελίδα 176
... Acres 531441 content as before 5. 1. 10 . 4 Rood 125764 4 Perches 103056 It is required to lay down a map of this piece of ground , by a scale of twenty perches to an inch . Take 29.16 the perches of the given side , from Take 176 To ...
... Acres 531441 content as before 5. 1. 10 . 4 Rood 125764 4 Perches 103056 It is required to lay down a map of this piece of ground , by a scale of twenty perches to an inch . Take 29.16 the perches of the given side , from Take 176 To ...
Σελίδα 178
... acres , and also to lay down a map of it , by a scale of 20 perches to an inch . Ch . L. 14.25 Perches . 29.00 8.37 17.48 } By prob . 4. sect . 3 .. 15732 3496 -A . R. P. 160 ) 506.9200 ( 3 . 0. 27. content . 26 perch , or near 27 . Or ...
... acres , and also to lay down a map of it , by a scale of 20 perches to an inch . Ch . L. 14.25 Perches . 29.00 8.37 17.48 } By prob . 4. sect . 3 .. 15732 3496 -A . R. P. 160 ) 506.9200 ( 3 . 0. 27. content . 26 perch , or near 27 . Or ...
Σελίδα 179
... Acres 3 | 16825 4 Rood 67300 4 Perches 2619200 To draw the map . Make an oblong ( by schol . to prob . 9. sect . 1. ) whose length , from a scale of 20 to an inch , may be 29 perches , and breadth , 17.48 perches . PROB . IV . The ...
... Acres 3 | 16825 4 Rood 67300 4 Perches 2619200 To draw the map . Make an oblong ( by schol . to prob . 9. sect . 1. ) whose length , from a scale of 20 to an inch , may be 29 perches , and breadth , 17.48 perches . PROB . IV . The ...
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A Treatise of Practical Surveying: Which Is Demonstrated From Its First ... Robert Gibson Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
A Treatise of Practical Surveying: Which Is Demonstrated from Its First ... Department of Radiology Royal Melbourne Hospital Robert Gibson,Robert Gibson Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2015 |
A Treatise of Practical Surveying: Which Is Demonstrated from Its First ... Department of Radiology Royal Melbourne Hospital Robert Gibson,Robert Gibson Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2013 |
Συχνά εμφανιζόμενοι όροι και φράσεις
40 perches ABCD acres altitude Answer base bearing blank line centre chains and links chord circle circumferentor Co-fecant Secant Co-fine Co-tang column contained cyphers decimal decimal fraction diameter difference Dift Diſt distance line divided draw drawn east edge EXAMPLE feet field-book figures fore four-pole chains half the sum height hypothenuse inches instrument latitude logarithm measure meridian distance method multiplied needle number of degrees object off-sets parallel parallelogram perpendicular piece of ground plane Plate pole Portmarnock PROB protractor quotient radius right angles right line scale of equal second station sect semicircle side sights sine square root stationary distance stationary line sun's survey taken tangent thence theo theodolite thro trapezium triangle ABC trigonometry true amplitude two-pole chains vane variation Vulgar Fraction whence ΙΟ
Δημοφιλή αποσπάσματα
Σελίδα 32 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Σελίδα 199 - ... that triangles on the same base and between the same parallels are equal...
Σελίδα 94 - C' (89) (90) (91) (92) (93) 112. In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference.
Σελίδα 23 - Four quantities are said to be in proportion when the product of the extremes is equal to that of the means : thus if A multiplied by D, be equal to B multiplied by C, then A is said to be to B as C is to D.
Σελίδα 95 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Σελίδα 37 - ABDE+ACGF the sum of the squares —BKLH-\-KCML, the sum of the two parallelograms or square BCMH; therefore the sum of the squares on AB and AC is equal to the square on BC.
Σελίδα 24 - Things that are equal to one and the same thing, are equal to each other. 2. Every whole is greater than its part. % 3. Every whole is equal to all its parts taken together. 4 If to equal things, equal things be added, the whole will be equal. 5. If from equal things, equal things be deducted the remainders will be equal.
Σελίδα 36 - XIII. •All parallelograms on the same or equal bases and between the same parallels...
Σελίδα 182 - VI. To find the content of a triangular piece of ground, Multiply the base by half the perpendicular, or the perpendicular by half the base ; or take half the product of the base into the perpendicular. The reason hereof is plain, from cor.
Σελίδα 35 - Triangles upon equal bases, and between the same parallels, are equal to one another.