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 Seiten |
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Ergebnisse 1-5 von 14
Seite 16
... hand of the Degrees , and a Dash at the right hand of the Minutes ; thus 35 ° 30 ' is 35 Degrees and 30 Minutes . Draw the Line CB an indefinite length ; at C make an Angle of 35 ° 30 ; through where that number of Degress cuts the Arch ...
... hand of the Degrees , and a Dash at the right hand of the Minutes ; thus 35 ° 30 ' is 35 Degrees and 30 Minutes . Draw the Line CB an indefinite length ; at C make an Angle of 35 ° 30 ; through where that number of Degress cuts the Arch ...
Seite 24
... Hand of the last which you wish to retain is more than 5 , add a Unit to the last ; because a greater number than 5 is more than half . As the Table of Artificial or Logarithmic Sines , Tangents and Secants , contained in this Book , is ...
... Hand of the last which you wish to retain is more than 5 , add a Unit to the last ; because a greater number than 5 is more than half . As the Table of Artificial or Logarithmic Sines , Tangents and Secants , contained in this Book , is ...
Seite 36
... by 10 ; or , which is the same thing , cut off the Right hand figure : Thus , 1460 Square Chains make 146 Acres ; and 846 Square Chains make PROBLEM VI . To Reduce Square Links to Acres . 84 Acres and 6 Tenths . 36 SURVEYING .
... by 10 ; or , which is the same thing , cut off the Right hand figure : Thus , 1460 Square Chains make 146 Acres ; and 846 Square Chains make PROBLEM VI . To Reduce Square Links to Acres . 84 Acres and 6 Tenths . 36 SURVEYING .
Seite 37
... hand figures : Thus , 3845120 Square Links make 38 Acres and 45120 Decimals . Note . When the Area of a Field , by which is meant its Super- ficial Contents , is expressed in Square Chains and Links , the whole may be considered as ...
... hand figures : Thus , 3845120 Square Links make 38 Acres and 45120 Decimals . Note . When the Area of a Field , by which is meant its Super- ficial Contents , is expressed in Square Chains and Links , the whole may be considered as ...
Seite 39
... hand figure of the Index , or subtracting 10 , without the trouble of setting down the Cyphers . By Natural Sines . Multiply the two given Sides into each other , and that Product by the Natural Sine of the given Angle ; the last ...
... hand figure of the Index , or subtracting 10 , without the trouble of setting down the Cyphers . By Natural Sines . Multiply the two given Sides into each other , and that Product by the Natural Sine of the given Angle ; the last ...
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System of Geometry and Trigonometry: Together with a Treatise on Surveying ... Abel Flint Keine Leseprobe verfügbar - 2017 |
System of Geometry and Trigonometry: Together With a Treatise on Surveying ... Abel Flint Keine Leseprobe verfügbar - 2017 |
Beliebte Passagen
Seite 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.
Seite 27 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Seite 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.
Seite 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.
Seite 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.
Seite 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.
Seite 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.
Seite 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.
Seite 23 - The square of the hypothenuse is equal to the sum of the squares of the other two sides ; as, 5033 402+302.