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 |
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Página 35
... Roods , each containing 40 Square Rods . The instrument most in use , for measuring the Sides of Fields , is GUNTER'S Chain , which is in length 4 Rods or 66 Feet ; and is divided into 100 equal parts , called Links , each containing 7 ...
... Roods , each containing 40 Square Rods . The instrument most in use , for measuring the Sides of Fields , is GUNTER'S Chain , which is in length 4 Rods or 66 Feet ; and is divided into 100 equal parts , called Links , each containing 7 ...
Página 36
... Roods or Quarters of an Acre : Thus , 746 Square Rods make 4 Acres , 2 Roods and 26 Rods . PROBLEM V. To reduce Square Chains to Acres . RULE . Divide by 10 ; or , which is the same thing , cut off the Right hand figure : Thus , 1460 ...
... Roods or Quarters of an Acre : Thus , 746 Square Rods make 4 Acres , 2 Roods and 26 Rods . PROBLEM V. To reduce Square Chains to Acres . RULE . Divide by 10 ; or , which is the same thing , cut off the Right hand figure : Thus , 1460 ...
Página 37
... Roods ; multiply the figures last cut off by 40 , and again cut off 5 figures , and you have the Rods . EXAMPLE . How many Acres , Roods and Rods are there in 156 Square Chains and 3274 Square Links ? 15 ) 63274 Square Links 4 2 ) 53096 ...
... Roods ; multiply the figures last cut off by 40 , and again cut off 5 figures , and you have the Rods . EXAMPLE . How many Acres , Roods and Rods are there in 156 Square Chains and 3274 Square Links ? 15 ) 63274 Square Links 4 2 ) 53096 ...
Página 38
... Roods and 17 Rods . By Logarithms . As the Addition of Logarithms is the same as the Multiplication of their corresponding Numbers ; and as the Number answering to the one half of a Logarithm will be the Square Root of the Number ...
... Roods and 17 Rods . By Logarithms . As the Addition of Logarithms is the same as the Multiplication of their corresponding Numbers ; and as the Number answering to the one half of a Logarithm will be the Square Root of the Number ...
Página 41
... the Area by PROB . IX . Rule 3 . FIELD BOOK . See PLATE II . Fig . 46 . Chains . AB 20 BC 24 CA 18 To find the Area . Ch . L. Base BC 24.00 Half Perp . AD 7.34 9600 7200 16800 Acres 17 ) 61600 4 Roods 2 F SURVEYING . 41.
... the Area by PROB . IX . Rule 3 . FIELD BOOK . See PLATE II . Fig . 46 . Chains . AB 20 BC 24 CA 18 To find the Area . Ch . L. Base BC 24.00 Half Perp . AD 7.34 9600 7200 16800 Acres 17 ) 61600 4 Roods 2 F SURVEYING . 41.
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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.