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 Authors |
From inside the book
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Page 12
... Angle is the Arch of a Circle contained between the two Lines which form the Angle , the angular Point being the Centre ; thus the Angle HCB . Fig . 7. is measured by the Arch BH ; and is said to contain so many Degrees as the Arch does ...
... Angle is the Arch of a Circle contained between the two Lines which form the Angle , the angular Point being the Centre ; thus the Angle HCB . Fig . 7. is measured by the Arch BH ; and is said to contain so many Degrees as the Arch does ...
Page 18
... Angle at B 45 ° 15 , the Angle at D 108 ° 30 ' , consequently the other An- gle 26 ° 15 ' . Draw the side BC in ... contained Angle being given . Fig . 36 . Suppose the Side BC 109 , the Side BD 76 , and the Angle at B 101 ° 30 ' . Draw ...
... Angle at B 45 ° 15 , the Angle at D 108 ° 30 ' , consequently the other An- gle 26 ° 15 ' . Draw the side BC in ... contained Angle being given . Fig . 36 . Suppose the Side BC 109 , the Side BD 76 , and the Angle at B 101 ° 30 ' . Draw ...
Page 24
... contained in this Book , is calcu- lated only for every 5 Minutes of a Degree , whenever any Question is to be ... Angle at A 33 ° 15 ′ , and the Angle at C 56 ° 45 ' ; to find the Hypothenuse and the Leg BC . Making the given Leg Radius ...
... contained in this Book , is calcu- lated only for every 5 Minutes of a Degree , whenever any Question is to be ... Angle at A 33 ° 15 ′ , and the Angle at C 56 ° 45 ' ; to find the Hypothenuse and the Leg BC . Making the given Leg Radius ...
Page 27
... Angle ACB . Note . The reason why the Angle as found by Nat . Sines differs 2 Minutes from the Angle as found by Logarithms , is that the Table of Logarithmic Sines , & c . contained in this Book , is calculated only for every 5 Minutes ...
... Angle ACB . Note . The reason why the Angle as found by Nat . Sines differs 2 Minutes from the Angle as found by Logarithms , is that the Table of Logarithmic Sines , & c . contained in this Book , is calculated only for every 5 Minutes ...
Page 31
... Angle ACB . · 2.30103 Angle at A ❤ 46 ° 30 ' : Sine BAC , 46 ° 30 ' , - :: Side AB , 240 9.86056 ~ 2.38021 C 60 30 ... contained Angle given , to find the other Angles and Side . Fig . 49 . The solution of this CASE depends on the ...
... Angle ACB . · 2.30103 Angle at A ❤ 46 ° 30 ' : Sine BAC , 46 ° 30 ' , - :: Side AB , 240 9.86056 ~ 2.38021 C 60 30 ... contained Angle given , to find the other Angles and Side . Fig . 49 . The solution of this CASE depends on the ...
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System of Geometry and Trigonometry: Together with a Treatise on Surveying ... Abel Flint No preview available - 2017 |
System of Geometry and Trigonometry: Together With a Treatise on Surveying ... Abel Flint No preview available - 2017 |
Common terms and phrases
Angle opposite Bearing and Distance C.Tang Chord Circle Circumference Co-Sine Sine Compass contained Angle Decimals Degrees and Minutes Dep Lat Diagonal Difference Dist divided Doub Double Area double the Area draw a Line Draw the Line EXAMPLE FIELD BOOK find the Angles find the Area find the Leg given Leg given number given Side Lat Dep Latitude and Departure Leg AB Leg BC length Loga Logarithmic Sine measuring Meridian multiply Natural Sines North Areas Note number of Acres number of Degrees Offset opposite Angle Parallelogram PLATE Plot PROB PROBLEM protract Quotient Radius Remainder Rhombus Right Angled Triangle RULE Secant Co-Secant Side BC Sine Co-Sine Tangent Sine Sine Sine South Areas Square Chains Square Links Square Root stationary Lines subtract survey a Field Surveyor Table of Logarithms Table of Natural Tangent Co-Secant Secant Tangent or Secant Trapezium Trapezoid Triangle ABC TRIGONOMETRY
Popular passages
Page 10 - 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, etc.
Page 31 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Page 32 - 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 10 - The Radius of a circle is a line drawn from the centre to the circumference.
Page 78 - Go to any part of the premises where any two adjacent corners are known ; and if one can be seen from the other, take their bearing ; which, compared with that of the same line in the former survey, shows the difference. But if one corner cannot be seen from the other, run the line according to the given bearing, and observe the nearest distance between the line so run and the corner ; then...
Page 44 - 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 14 - Figures which consist of more than four sides' are called polygons; if the sides are equal to each other they are called regular polygons, and are sometimes named from the number of their sides, as pentagon, or hexagon, a figure of five or six sides, &c.; if the sides are unequal, they are called irregular polygons.
Page 44 - 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.
Page 27 - The square of the hypothenuse is equal to the sum of the squares of the other two sides ; as, 5033 402+302.
Page 39 - To find the area of a trapezoid. RULE. — Multiply half the sum of the parallel sides by the altitude, and the product is the area.