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
Resultados 1-5 de 34
Página 8
... 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 of the ...
... 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 of the ...
Página 14
... distance ; as at the Point D , to make a Line parallel to the Line AB . PLATE 1. Fig . 22 . With the Dividers take the nearest distance between the Point D and the given Line AB ; with that dis- tance set one foot of the Dividers any ...
... distance ; as at the Point D , to make a Line parallel to the Line AB . PLATE 1. Fig . 22 . With the Dividers take the nearest distance between the Point D and the given Line AB ; with that dis- tance set one foot of the Dividers any ...
Página 15
... distance , and with one foot in B describe the Arch FG ; with the same distance and one foot in E , describe an Arch from H ; measure the Arch FG , and lay off the same distance on the Arch from H to I ; draw a Line through I to E , and ...
... distance , and with one foot in B describe the Arch FG ; with the same distance and one foot in E , describe an Arch from H ; measure the Arch FG , and lay off the same distance on the Arch from H to I ; draw a Line through I to E , and ...
Página 18
... distance in the Dividers , describe Arches inter- secting each other at D , and draw the Lines AD and DC . PROBLEM XVII . To make a Parallelogram . Fig . 38 . Draw the Line AB equal to the longest Side of the Parallelogram ; on B erect ...
... distance in the Dividers , describe Arches inter- secting each other at D , and draw the Lines AD and DC . PROBLEM XVII . To make a Parallelogram . Fig . 38 . Draw the Line AB equal to the longest Side of the Parallelogram ; on B erect ...
Página 34
... Distances ; called ALTIMETRY and LoN- GIMETRY . These are here omitted because , as this work is designed principally to teach the Art of com- mon FIELD SURVEYING , it was thought improper to swell its size , and consequently increase ...
... Distances ; called ALTIMETRY and LoN- GIMETRY . These are here omitted because , as this work is designed principally to teach the Art of com- mon FIELD SURVEYING , it was thought improper to swell its size , and consequently increase ...
Otras ediciones - Ver todas
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.