A Treatise of Practical Surveying: Which is Demonstrated from Its First Principles ... |
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Σελίδα 24
The inclination of two lines meeting one another ( provided they do not make one
continued line ) or the opening between them , is called an angle . Thus fig . 4.
the inclination of the line AB to the line BC meeting each other in the point B , or ...
The inclination of two lines meeting one another ( provided they do not make one
continued line ) or the opening between them , is called an angle . Thus fig . 4.
the inclination of the line AB to the line BC meeting each other in the point B , or ...
Σελίδα 25
Plate 1 . 13. Acute and obtuse angles in general are called oblique angles . 14. If
a right line CB . ( fig . 8. ) be fastened at the end C , and the other end B , be
carried quite round , then the space comprehended is called a circle ; and the
curve ...
Plate 1 . 13. Acute and obtuse angles in general are called oblique angles . 14. If
a right line CB . ( fig . 8. ) be fastened at the end C , and the other end B , be
carried quite round , then the space comprehended is called a circle ; and the
curve ...
Σελίδα 27
And the line which terminates the tangent , that is , CK is called the secant of the
arc HB . fig . 8 . 26. What an arc wants of a quadrant is called the complement
thereof : Thus DH is the complement of the arc HB . 27. And what an arc wants of
a ...
And the line which terminates the tangent , that is , CK is called the secant of the
arc HB . fig . 8 . 26. What an arc wants of a quadrant is called the complement
thereof : Thus DH is the complement of the arc HB . 27. And what an arc wants of
a ...
Σελίδα 30
Acute and obtuse angled triangles are in general called oblique angled triangles
, in all which may be called the base , and the other two the sides . any side 42.
The perpendicular height of a triangle is a line drawn from the vertex to the base
...
Acute and obtuse angled triangles are in general called oblique angled triangles
, in all which may be called the base , and the other two the sides . any side 42.
The perpendicular height of a triangle is a line drawn from the vertex to the base
...
Σελίδα 31
A quadrilateral figure that is not a parallelogram , is called a trapezium . Plate 7.
fig . 3 . 50. Figures which consists of more than four sides are called polygons ; if
the sides are all equal to each other , they are called regular polygons .
A quadrilateral figure that is not a parallelogram , is called a trapezium . Plate 7.
fig . 3 . 50. Figures which consists of more than four sides are called polygons ; if
the sides are all equal to each other , they are called regular polygons .
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Συχνά εμφανιζόμενοι όροι και φράσεις
acres angle Answer base bearing called centre chains chord circle Co-sec Co-sine Co-tang column contained decimal difference direct distance divided division draw drawn east edge equal EXAMPLE feet field field-book figures four four-pole fourth give given greater ground half height Hence inches laid land Lat Dep length less logarithm manner measure method multiplied needle object observe opposite parallel perches perpendicular plain plane Plate pole prob PROBLEM proportion quantity quotient radius reduce remainder right angles right line root scale Secant sect side sights sine square station suppose survey taken Tang tangent theo THEOREM third triangle triangle ABC true turn variation whence whole
Δημοφιλή αποσπάσματα
Σελίδα 25 - 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, &c.
Σελίδα 207 - ... that triangles on the same base and between the same parallels are equal...
Σελίδα 40 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Σελίδα 43 - Triangles upon equal bases, and between the same parallels, are equal to one another.
Σελίδα 103 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Σελίδα 31 - Figures which consist of more than four sides are called polygons ; if the sides are all equal to each other, they are called regular polygons. They sometimes are named from the number of. their sides, as a five-sided figure is called a pentagon, one of six sides a hexagon, &"c.
Σελίδα 31 - ... they are called regular polygons. They sometimes are named from the number of their sides, as a five-sided figure is called a pentagon, one of. six sides a hexagon, &c. but if their sides are not equal to each other, then they are called irregular polygons, as an irregular pentagon, hexagon, &c.
Σελίδα 45 - The hypothenuse of a right-angled triangle may be found by having the other two sides ; thus, the square root of the sum of the squares of the base and perpendicular, will be the hypothenuse. Cor. 2. Having the hypothenuse and one side given to find the other; the square root of the difference of the squares of the hypothenuse and given side will be the required side.
Σελίδα 265 - As the length of the whole line, Is to 57.3 Degrees,* So is the said distance, To the difference of Variation required. EXAMPLE. Suppose it be required to run a line which some years ago bore N. 45°.
Σελίδα 32 - Things that are equal to one and the same thing are equal to one another." " If equals be added to equals, the wholes are equal." " If equals be taken from equals, the remainders are equal.
Πληροφορίες βιβλιογραφίας
| Τίτλος | A Treatise of Practical Surveying: Which is Demonstrated from Its First Principles ... |
| Συγγραφέας | Robert Gibson |
| Έκδοση | 3 |
| Εκδότης | Lewis Nichols, 1806 |
| Πρωτότυπο από | το Πανεπιστήμιο του Μίτσιγκαν |
| Ψηφιοποιήθηκε στις | 26 Μάιος 2007 |
| Μέγεθος | 452 σελίδες |
| Εξαγωγή αναφοράς | BiBTeX EndNote RefMan |