A Treatise on Surveying, Containing the Theory and Practice: To which is Prefixed a Perspicuous System of Plane Trigonometry. The Whole Clearly Demonstrated and Illustrated by a Large Number of Appropriate Examples. Particularly Adapted to the Use of Schools |
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Page 9
... , as there can be taken different geometrical series , having unity for the first term . But the most con- B venient system , is that in which the ratio of Logarithms Geometrical Definitions Problems Plane Trigonometry PAGE.
... , as there can be taken different geometrical series , having unity for the first term . But the most con- B venient system , is that in which the ratio of Logarithms Geometrical Definitions Problems Plane Trigonometry PAGE.
Page 12
... taken out of the table , and the sum will be the logarithm required . Thus , let it be required to find the logarithm of 59686 ; then , Logarithm of 5968 is 77583 The next greater log . is 77590 Difference 7 Remaining figure 6 LO ...
... taken out of the table , and the sum will be the logarithm required . Thus , let it be required to find the logarithm of 59686 ; then , Logarithm of 5968 is 77583 The next greater log . is 77590 Difference 7 Remaining figure 6 LO ...
Page 25
... taken , the straight line between them lies wholly in that superficies . 7. A plane rectilineal angle is the inclination of two straight lines to one another , which meet together , but are not in the same straight line , as A , Fig . 1 ...
... taken , the straight line between them lies wholly in that superficies . 7. A plane rectilineal angle is the inclination of two straight lines to one another , which meet together , but are not in the same straight line , as A , Fig . 1 ...
Page 37
... taken from a scale of chords , describe an arc , cutting AB in m ' ; from the same scale of chords , take 38 de- grees and apply it to the arc from m ton , and from A through n draw the line AC , then will the angle A con- tain 38 ...
... taken from a scale of chords , describe an arc , cutting AB in m ' ; from the same scale of chords , take 38 de- grees and apply it to the arc from m ton , and from A through n draw the line AC , then will the angle A con- tain 38 ...
Page 38
... taken from a table of lo- garithms and properly arranged form the table of logari- thmic or artificial sines . In like manner the logarithmie tangents and secants are to be understood . The method by which the sines are computed is too ...
... taken from a table of lo- garithms and properly arranged form the table of logari- thmic or artificial sines . In like manner the logarithmie tangents and secants are to be understood . The method by which the sines are computed is too ...
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A Treatise on Surveying: Containing the Theory and Practice: To Which Is ... John Gummere No preview available - 2016 |
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Page 2 - An Act for the encouragement of learning, by securing the copies of maps, charts, and books, to the authors and proprietors of such copies during the times therein mentioned." And also to the act, entitled " An Act supplementary to an Act, entitled, " An Act for the encouragement of learning, by securing the copies of maps, charts, and books, to the authors and proprietors of such copies during the time therein mentioned," and extending the benefits thereof to the arts of designing, engraving, and...
Page 97 - To find the Area of a Triangle when the Three Sides are given. Rule. — From half the sum of the three sides subtract each side separately.
Page 43 - The angle at the centre of a circle is double of the angle at the circumference upon the same base, that is, upon the same part of the circumference.
Page 34 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.
Page 2 - Co. of the said district, have deposited in this office the title of a book, the right whereof they claim as proprietors, in the words following, to wit : " Tadeuskund, the Last King of the Lenape. An Historical Tale." In conformity to the Act of the Congress of the United States...
Page 85 - A maypole, whose top was broken off by a blast of wind, struck the ground at 15 feet distance from the foot of the pole: what was the height of the whole maypole, supposing the broken piece to measure 39 feet in length ? Ans.
Page 25 - A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line.
Page 26 - Parallel straight lines are such as are in the same plane, and which being produced ever so far both ways, do not meet.
Page 91 - PROBLEM I. To find the area of a parallelogram; whether it be a square, a rectangle, a rhombus, or a rhomboides. RULE.* Multiply the length by the perpendicular height, and the product will be the area.
Page 96 - If one side and the angles are given ; then As the product of radius and the sine of the angle opposite the given side, To the product of the sines of the two other angles ; So is the square of the given side, To twice the area of the triangle. If PC (Fig.