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 páginas |
Dentro del libro
Página v
... course of his practice , for the solution of which no particular directions are here given ; nor is it possi- ble to give directions for every case that may occur . In all practical Sciences much must be left to the judg- ment of the ...
... course of his practice , for the solution of which no particular directions are here given ; nor is it possi- ble to give directions for every case that may occur . In all practical Sciences much must be left to the judg- ment of the ...
Página 8
... Course and Distance of dividing Lines , or from one part of a Field to another . To this are added some observations res-- pecting the Variation of the Compass and the Attrac- tion of the Needle ; with Rules for finding the Varia- tion ...
... Course and Distance of dividing Lines , or from one part of a Field to another . To this are added some observations res-- pecting the Variation of the Compass and the Attrac- tion of the Needle ; with Rules for finding the Varia- tion ...
Página 41
... Courses of the Sides , or the Quantity of the several Angles , as found by a Compass , or other instrument for that purpose ; together with such Re- marks as the Surveyor thinks proper to make in the Field . CASE I. To survey a ...
... Courses of the Sides , or the Quantity of the several Angles , as found by a Compass , or other instrument for that purpose ; together with such Re- marks as the Surveyor thinks proper to make in the Field . CASE I. To survey a ...
Página 46
... Course with a Compass ; enter these in a Field Book ; plot the Field on Paper , and calculate the Area by the directions already given . To protract or draw a Map of a Field . Draw a Line to represent a Meridian or North and South Line ...
... Course with a Compass ; enter these in a Field Book ; plot the Field on Paper , and calculate the Area by the directions already given . To protract or draw a Map of a Field . Draw a Line to represent a Meridian or North and South Line ...
Página 48
... Course or Bearing of one of the Sides is Northerly and the other Southerly , one 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 ...
... Course or Bearing of one of the Sides is Northerly and the other Southerly , one 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 ...
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System of Geometry and Trigonometry: Together with a Treatise on Surveying ... Abel Flint Sin vista previa disponible - 2017 |
System of Geometry and Trigonometry: Together With a Treatise on Surveying ... Abel Flint Sin vista previa disponible - 2017 |
Pasajes populares
Página 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.
Página 27 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Página 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.
Página 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.
Página 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.
Página 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.
Página 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.
Página 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.
Página 23 - The square of the hypothenuse is equal to the sum of the squares of the other two sides ; as, 5033 402+302.