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 9.
Σελίδα 7
... Diagonals and Perpen- diculars with a Scale and Dividers ; interspersed with sundry useful rules and directions . The third Section is a particular explanation and demonstration of Rectangular Surveying , or the me- thod of computing ...
... Diagonals and Perpen- diculars with a Scale and Dividers ; interspersed with sundry useful rules and directions . The third Section is a particular explanation and demonstration of Rectangular Surveying , or the me- thod of computing ...
Σελίδα 14
... Diagonal is a Line drawn between two oppo- site Angles ; as the Line AB . Fig . 21 . 49. Figures which consist of more than four Sides are called Polygons ; if the sides are equal to each other they are called regular Polygons , and are ...
... Diagonal is a Line drawn between two oppo- site Angles ; as the Line AB . Fig . 21 . 49. Figures which consist of more than four Sides are called Polygons ; if the sides are equal to each other they are called regular Polygons , and are ...
Σελίδα 39
... XI . To find the Area of a Trapezium , or irregular Four Sided Figure . RULE . Draw a Diagonal between two opposite Triangles . Find the Area of each Triangle and add Angles , which will divide the Trapezium into two SURVEYING . 39.
... XI . To find the Area of a Trapezium , or irregular Four Sided Figure . RULE . Draw a Diagonal between two opposite Triangles . Find the Area of each Triangle and add Angles , which will divide the Trapezium into two SURVEYING . 39.
Σελίδα 40
... Diagonal ; the Product will be the Area . Note . Where the length of the four Sides and of the Diagonal is known , the Area of the two Triangles , into which the Tra- pezium is divided , may be calculated Arithmetically , ac- cording to ...
... Diagonal ; the Product will be the Area . Note . Where the length of the four Sides and of the Diagonal is known , the Area of the two Triangles , into which the Tra- pezium is divided , may be calculated Arithmetically , ac- cording to ...
Σελίδα 42
... Diagonal between two opposite Angles ; protract the Field , and find the Area by PROBLEM XI . Or , without protracting the Field , calculate the Area according to the Note at the end of that PROBLEM . FIELD BOOK . See PLATE II . Fig ...
... Diagonal between two opposite Angles ; protract the Field , and find the Area by PROBLEM XI . Or , without protracting the Field , calculate the Area according to the Note at the end of that PROBLEM . FIELD BOOK . See PLATE II . Fig ...
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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.