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 SchoolsKimber & Richardson, 1814 - 346 σελίδες |
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Σελίδα 25
... length but not breadth . 4. A straight , or right line , is the shortest line that can be drawn between any two points . 5. A superficies or surface has length and breadth , but pot thickness . 6. A plane superficies is that in which ...
... length but not breadth . 4. A straight , or right line , is the shortest line that can be drawn between any two points . 5. A superficies or surface has length and breadth , but pot thickness . 6. A plane superficies is that in which ...
Σελίδα 26
... length of those lines . Thus the angle DBE is greater than the angle ABC , Fig . 3 . 9. When a straight line CD stands on another straight line AB , so as to incline to neither side , but makes the angles on each side equal , then those ...
... length of those lines . Thus the angle DBE is greater than the angle ABC , Fig . 3 . 9. When a straight line CD stands on another straight line AB , so as to incline to neither side , but makes the angles on each side equal , then those ...
Σελίδα 38
... lengths of these lines being computed and arranged in a table constitute what is usually termed a table of natural sines . The logarithms of those numbers taken from a table of lo- garithms and properly arranged form the table of logari ...
... lengths of these lines being computed and arranged in a table constitute what is usually termed a table of natural sines . The logarithms of those numbers taken from a table of lo- garithms and properly arranged form the table of logari ...
Σελίδα 40
... length of the primary divisions . The primary divisions on the second part of the scale , are estimated according to the value set upon the unit on as a unit , then the first 1 , 2 the left hand of the scale : If the first 1 be ...
... length of the primary divisions . The primary divisions on the second part of the scale , are estimated according to the value set upon the unit on as a unit , then the first 1 , 2 the left hand of the scale : If the first 1 be ...
Σελίδα 46
... length , and draw AC making the angle A≈ 53 ° 8 ′ ; make AC = 480 by a scale of equal parts , and from C draw CB perpendicular to AB , then ABC is the triangle required . AB , measured by the same scale of equal parts , will be 288 ...
... length , and draw AC making the angle A≈ 53 ° 8 ′ ; make AC = 480 by a scale of equal parts , and from C draw CB perpendicular to AB , then ABC is the triangle required . AB , measured by the same scale of equal parts , will be 288 ...
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A Treatise on Surveying: Containing the Theory and Practice: To Which Is ... John Gummere Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
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Σελίδα 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...
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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...
Σελίδα 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.
Σελίδα 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.
Σελίδα 26 - Parallel straight lines are such as are in the same plane, and which being produced ever so far both ways, do not meet.
Σελίδα 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.
Σελίδα 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.