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 Find 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 : Compiled from Various AuthorsOliver D. Cooke, 1804 - 168 σελίδες |
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Σελίδα 44
... seen , meas- ure Diagonals to them ; draw a Plot of the Field , and find the Area by PROBLEM XII . FIELD BOOK . See PLATE II . Fig . 52 . Ch . L. AB 30.60 Diagonals . BC 20.40 Ch . L. CD 22.40 AC 45 . DE 16.20 AD 35 . EF 13.50 AE 24.20 ...
... seen , meas- ure Diagonals to them ; draw a Plot of the Field , and find the Area by PROBLEM XII . FIELD BOOK . See PLATE II . Fig . 52 . Ch . L. AB 30.60 Diagonals . BC 20.40 Ch . L. CD 22.40 AC 45 . DE 16.20 AD 35 . EF 13.50 AE 24.20 ...
Σελίδα 53
... seen . Take the Bearing of the Angles , and measure their Distance from the Station . FIELD BOOK . See PLATE III . Fig , 61 , From Station to A. N. 20 ° W. Ch . L. 8.70 B. N. 60 E. 10 . C. N. 87 E. 11.40 D. S. 15 E. 10.50 E. S. 60 W. 12 ...
... seen . Take the Bearing of the Angles , and measure their Distance from the Station . FIELD BOOK . See PLATE III . Fig , 61 , From Station to A. N. 20 ° W. Ch . L. 8.70 B. N. 60 E. 10 . C. N. 87 E. 11.40 D. S. 15 E. 10.50 E. S. 60 W. 12 ...
Σελίδα 54
... seen . From the stationary Angle take the Bearing and Distance to each of the other Angles , with a Compass and Chain . FIELD BOOK . See PLATE III . Fig . 59 . Ch . L. FG . N. N. 70 ° W. 14.60 FA . N. 50 W. W. 18.20 FB . N. 30 W. 16.80 ...
... seen . From the stationary Angle take the Bearing and Distance to each of the other Angles , with a Compass and Chain . FIELD BOOK . See PLATE III . Fig . 59 . Ch . L. FG . N. N. 70 ° W. 14.60 FA . N. 50 W. W. 18.20 FB . N. 30 W. 16.80 ...
Σελίδα 55
... seen from each Sta- tion . Find the Bearing from each Station to the respect- ive Angles ; and also the Bearing and Distance from one Station to the other . FIELD BOOK . See PLATE III . Fig . 62 . First Station . AC . N. 38 ° 30 ' E. AD ...
... seen from each Sta- tion . Find the Bearing from each Station to the respect- ive Angles ; and also the Bearing and Distance from one Station to the other . FIELD BOOK . See PLATE III . Fig . 62 . First Station . AC . N. 38 ° 30 ' E. AD ...
Σελίδα 56
... seen ; from each Station take the Bearing of the Angles ; and take the Bearing and Distance from one Station to the other . FIELD BOOK . See PLATE IV . Fig . 67 . First Station . AE . N. 9 ° 15 ′ E. AF . N. 16 0 E. AG . N. 14 30 E. AD ...
... seen ; from each Station take the Bearing of the Angles ; and take the Bearing and Distance from one Station to the other . FIELD BOOK . See PLATE IV . Fig . 67 . First Station . AE . N. 9 ° 15 ′ E. AF . N. 16 0 E. AG . N. 14 30 E. AD ...
Άλλες εκδόσεις - Προβολή όλων
System of Geometry and Trigonometry: Together with a Treatise on Surveying ... Abel Flint Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
System of Geometry and Trigonometry: Together With a Treatise on Surveying ... Abel Flint Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Δημοφιλή αποσπάσματα
Σελίδα 28 - 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 27 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Σελίδα 6 - The Circumference of every circle is supposed to be divided into 360 equal parts, called Degrees ; and each degree into 60 Minutes, each minute into 60 Seconds, and so on.
Σελίδα 24 - In this case the" hypothenuse may be found by the square root without finding the angles ; according to the following PROPOSITION. IN EVERY RIGHT ANGLED TRIANGLE, THE SUM OF THE SQUARES OF THE TWO LEGS IS EQUAL TO THE SQUARE OF THE HYPOTHENUSE. In the above EXAMPLE, the square of AB 78.7 is 6193.69, the square of BC 89 is 7921 ; these added make 14114,69 the square root of which is nearest 119.
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 33 - To find the area of a trapezoid. RULE. Multiply half the sum of the two parallel sides by the perpendicular distance between them : the product will be the area.
Σελίδα 6 - 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, passing through the centre ; and it divides the circle into two equal parts, called semicircles ; as AB or DE.
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.
Σελίδα 23 - The square of the hypothenuse is equal to the sum of the squares of the other two sides ; as, 5033 402+302.