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 11.
Σελίδα 13
... represent the perpendicular height of the Rhombus and Rhomboides . 46. A Trapezoid is a Figure bounded by four Sides , two of which are parellel though of unequal lengths . Fig . 19. and Fig . 20 . Note . Fig . 19. is sometimes called a ...
... represent the perpendicular height of the Rhombus and Rhomboides . 46. A Trapezoid is a Figure bounded by four Sides , two of which are parellel though of unequal lengths . Fig . 19. and Fig . 20 . Note . Fig . 19. is sometimes called a ...
Σελίδα 43
... represent that Corner of the Field : Then with the Side CD 21.50 and the Side AD 14.70 describe cross Arches as at D , from A and C as Cen- tres ; and the Point of intersection will represent that Corner of the Field . To find the Area ...
... represent that Corner of the Field : Then with the Side CD 21.50 and the Side AD 14.70 describe cross Arches as at D , from A and C as Cen- tres ; and the Point of intersection will represent that Corner of the Field . To find the Area ...
Σελίδα 46
... represent a Meridian or North and South Line , from which lay off the Bearing or Course of the first Side of a Field , with a Protractor or from a Line of Chords ; and from a Scale of equal Parts measure the length of the Side and draw ...
... represent a Meridian or North and South Line , from which lay off the Bearing or Course of the first Side of a Field , with a Protractor or from a Line of Chords ; and from a Scale of equal Parts measure the length of the Side and draw ...
Σελίδα 55
... represent the several Sides of the Field . To CASE VIII . survey an inaccessible Field . Fix upon two Stations , at a convenient distance from be seen ; from each Station take the Bearing of the Field , from each of which the several ...
... represent the several Sides of the Field . To CASE VIII . survey an inaccessible Field . Fix upon two Stations , at a convenient distance from be seen ; from each Station take the Bearing of the Field , from each of which the several ...
Σελίδα 57
... represent the Boundaries of the Field . To find the Area . Find the Area within the Stationary Lines as before taught ; then of the several small Trapezoids Parallel- ograms and Triangles made by the Stationary Lines , Offsetts and ...
... represent the Boundaries of the Field . To find the Area . Find the Area within the Stationary Lines as before taught ; then of the several small Trapezoids Parallel- ograms and Triangles made by the Stationary Lines , Offsetts and ...
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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.