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 ... |
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Page 46
... East ; and the Left hand , West : Lay the Course to the Right or Left of the Meridian Line , according as it is East or West ; and from the upper or lower part of the Line , according as it is North or South . In all protractions , if ...
... East ; and the Left hand , West : Lay the Course to the Right or Left of the Meridian Line , according as it is East or West ; and from the upper or lower part of the Line , according as it is North or South . In all protractions , if ...
Page 48
... East- erly and the other Westerly subtract the less Course from the greater ; the Remainder will be the Angle between them . RULE 2. If one is Northerly and the other South- erly , and both Easterly or Westerly , add both Courses ...
... East- erly and the other Westerly subtract the less Course from the greater ; the Remainder will be the Angle between them . RULE 2. If one is Northerly and the other South- erly , and both Easterly or Westerly , add both Courses ...
Page 51
... East 120 3. S. 54 0 W. 17.9 4. S. 11 O E. 200 4. S. 20 0 W. 5.8 5. South 216 5. S. 7 30 E. 29.4 6. West 160 6. N. 83 0 E. 107.4 7. S. 36 30 8. N. 38 15 W. 136 W. 160 7. N. 5 50 W. 22 . 8. N. 18 30 W. 46 . Acres Roods Rods Acres Rood ...
... East 120 3. S. 54 0 W. 17.9 4. S. 11 O E. 200 4. S. 20 0 W. 5.8 5. South 216 5. S. 7 30 E. 29.4 6. West 160 6. N. 83 0 E. 107.4 7. S. 36 30 8. N. 38 15 W. 136 W. 160 7. N. 5 50 W. 22 . 8. N. 18 30 W. 46 . Acres Roods Rods Acres Rood ...
Page 51
... East 120 3. S. 54 0 W. 17.9 4. S. 11 0 E. 200 4. S. 20 0 W. 5.8 5. South 216 5. S. 7 30 E. 29.4 6. West 160 6. N. 83 0 E. 107.4 7. S. 36 30 W. 160 7. N. 5 50 W. 22 . 8. N. 38 15 W. 136 Acres Roods Rods 8. N. 18 30 W. 46 . Acres Rood ...
... East 120 3. S. 54 0 W. 17.9 4. S. 11 0 E. 200 4. S. 20 0 W. 5.8 5. South 216 5. S. 7 30 E. 29.4 6. West 160 6. N. 83 0 E. 107.4 7. S. 36 30 W. 160 7. N. 5 50 W. 22 . 8. N. 38 15 W. 136 Acres Roods Rods 8. N. 18 30 W. 46 . Acres Rood ...
Page 60
... East 130 31 30.04 75.16 120.28 49.08 9.54 ) 4S . 11 0 E. 50 49.15 9.56 84.72 159 88 7858.1020 54.0 5 South ས 54 54.10 84.72 169.44 9166.7040 40. 6 6 West 140 ... 39 95 44.77 129.49 7 S. 36 30 W.40 ... 25.70 32.1 5 32,21 8 N.38 15 W. 34 ...
... East 130 31 30.04 75.16 120.28 49.08 9.54 ) 4S . 11 0 E. 50 49.15 9.56 84.72 159 88 7858.1020 54.0 5 South ས 54 54.10 84.72 169.44 9166.7040 40. 6 6 West 140 ... 39 95 44.77 129.49 7 S. 36 30 W.40 ... 25.70 32.1 5 32,21 8 N.38 15 W. 34 ...
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A System of Geometry and Trigonometry: Together with a Treatise on Surveying ... Able Flint No preview available - 2017 |
A System of Geometry and Trigonometry: Together with a Treatise on Surveying ... Able Flint No preview available - 2017 |
Popular passages
Page 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.
Page 23 - The square of the hypothenuse is equal to the sum of the squares of the other two sides ; as, 5033 402+302.
Page 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.
Page 25 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Page 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...
Page 8 - The radius of a circle is a line drawn from the centre to the circumference, as A, B.
Page 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.
Page 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.