A System of Geometry and Trigonometry: Together with a Treatise on Surveying: Teaching Various Ways of Taking the Survey of a Field; Also to Protract the Same and Fine the Area. Likewise, Rectangular Surveying; Or, an Accurate Method of Calculating the Area of Any Field Arithmetically, Without the Necessity of Plotting It. To the Whole are Added Several Mathematical Tables ... with a Particular Explanation ... and the Manner of Using Them ...O. D. Cooke, 1813 - 168 σελίδες |
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Αποτελέσματα 1 - 5 από τα 30.
Σελίδα 8
... Distance of dividing Lines , or from one part of a Field to another . To this is added an Appendix concerning the Variation of the Compass and Attraction of the Needle ; also , a Rule to find the difference between the present Variation ...
... Distance of dividing Lines , or from one part of a Field to another . To this is added an Appendix concerning the Variation of the Compass and Attraction of the Needle ; also , a Rule to find the difference between the present Variation ...
Σελίδα 14
... distance as at the point D to make a Line , parallel to the Line AB . PLATE 1. Fig . 22 . With the Dividers take the nearest distance between the Point D and the given Line AB ; with that dis- tance set one foot of the Dividers any ...
... distance as at the point D to make a Line , parallel to the Line AB . PLATE 1. Fig . 22 . With the Dividers take the nearest distance between the Point D and the given Line AB ; with that dis- tance set one foot of the Dividers any ...
Σελίδα 15
... distance , and with one foot in B describe the Arch FG ; with the same distance and one foot in E , describe an Arch from H ; measure the Arch FG , and lay off the same distance on the Arch from H to I ; draw a Line through I to E and ...
... distance , and with one foot in B describe the Arch FG ; with the same distance and one foot in E , describe an Arch from H ; measure the Arch FG , and lay off the same distance on the Arch from H to I ; draw a Line through I to E and ...
Σελίδα 18
... distance in the Dividers , describe Arches inter- secting each other at D , and draw the Lines AD and DC . PROBLEM XVII . To make a Parallelogram . Fig . 38 . Draw the Line AB equal to the longest Side of the Parallelogram ; on B erect ...
... distance in the Dividers , describe Arches inter- secting each other at D , and draw the Lines AD and DC . PROBLEM XVII . To make a Parallelogram . Fig . 38 . Draw the Line AB equal to the longest Side of the Parallelogram ; on B erect ...
Σελίδα 34
... Distances ; called ALTIMETRY and LON- These are here omitted because , as this work is designed principally to teach the Art of com- mon FIELD SURVEYING , it was thought improper to swell its size , and consequently increase its price ...
... Distances ; called ALTIMETRY and LON- These are here omitted because , as this work is designed principally to teach the Art of com- mon FIELD SURVEYING , it was thought improper to swell its size , and consequently increase its price ...
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A System of Geometry and Trigonometry: Together with a Treatise on Surveying ... Able Flint Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
A System of Geometry and Trigonometry: Together with a Treatise on Surveying ... Able Flint Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Δημοφιλή αποσπάσματα
Σελίδα 26 - As the base or sum of the segments Is to the sum of the other two sides, So is the difference of those sides To the difference of the segments of the base.
Σελίδα 23 - The square of the hypothenuse is equal to the sum of the squares of the other two sides ; as, 5033 402+302.
Σελίδα 8 - 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 25 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Σελίδα 25 - The solution of this CASE depends on the following PROPOSITION. In every Plane Triangle, As the Sum of any two Sides ; Is to their Difference ; So is the Tangent of half the Sum of the two opposite Angles ; To the Tangent of half the Difference between them. Add this half difference to half the Sum of the Angles and you will have the greater Angle ; and...
Σελίδα 8 - The radius of a circle is a line drawn from the centre to the circumference, as A, B.
Σελίδα 40 - Field work and protraction are truly taken and performed ; if not, an error must have been committed in one of them : In such cases make a second protraction ; if this agrees with the former, it is to be presumed the fault is in the Field work ; a re-survey must then be taken.
Σελίδα 40 - Let his attention first be directed to the map, and inform him that the top is north, the bottom south, the right hand east, and the left hand west.