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 31.
Σελίδα 9
... drawn between two Points .. 6. The inclination of two Lines meeting one another , or the opening between them , is called an Angle , Thus at B. PLATE I. Figure 1. is an Angle , formed by the meeting of the Lines AB and BC . 7. If a ...
... drawn between two Points .. 6. The inclination of two Lines meeting one another , or the opening between them , is called an Angle , Thus at B. PLATE I. Figure 1. is an Angle , formed by the meeting of the Lines AB and BC . 7. If a ...
Σελίδα 10
... drawn from the Centre to the Circumference ; as CB . Fig . 4 . Therefore all Radii of the same Circle are equal . 13. The Diameter of a Circle is a Right Line drawn from one side of the Circumference to the other , pass- ing through the ...
... drawn from the Centre to the Circumference ; as CB . Fig . 4 . Therefore all Radii of the same Circle are equal . 13. The Diameter of a Circle is a Right Line drawn from one side of the Circumference to the other , pass- ing through the ...
Σελίδα 11
... drawn perpendicular to the Diameter ; and is terminated by a Line drawn from the Centre through the other end of the Arch ; thus BK is the Tangent of the Arch BH . Fig . 7 . Note . The Tangent of an Arch of 45 Degrees is equal in length ...
... drawn perpendicular to the Diameter ; and is terminated by a Line drawn from the Centre through the other end of the Arch ; thus BK is the Tangent of the Arch BH . Fig . 7 . Note . The Tangent of an Arch of 45 Degrees is equal in length ...
Σελίδα 13
... drawn from one of the Angles to its opposite Side ; thus the dotted Line AD . Fig . 14. is the perpendicular height of the Triangle ABC . Note . This Perpendicular may be drawn from either of the Angles ; and whether it falls within the ...
... drawn from one of the Angles to its opposite Side ; thus the dotted Line AD . Fig . 14. is the perpendicular height of the Triangle ABC . Note . This Perpendicular may be drawn from either of the Angles ; and whether it falls within the ...
Σελίδα 14
... drawn between two oppo- site Angles ; as the Line AB . Fig . 21 . 49. Figures which consist of more than four Sides ... draw a Line parallel to another Line at any given distance as at the point D to make a Line , parallel to the Line AB ...
... drawn between two oppo- site Angles ; as the Line AB . Fig . 21 . 49. Figures which consist of more than four Sides ... draw a Line parallel to another Line at any given distance as at the point D to make a Line , parallel to the Line AB ...
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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.