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 |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 33.
Σελίδα 29
... half the line AB , and with one foot in A , describe the arc CFD ; with the same opening , and one foot in B , describe the arc CGD , meeting the first are in C and D ; from C to D draw the right line CD , cutting AB in E , which will ...
... half the line AB , and with one foot in A , describe the arc CFD ; with the same opening , and one foot in B , describe the arc CGD , meeting the first are in C and D ; from C to D draw the right line CD , cutting AB in E , which will ...
Σελίδα 31
... half D E describe two arcs cutting each other in F ; from A through F draw the line A G , and it will bisect the angle BAC . PROBLEM VIII . To make a triangle of any three right lines D , E and F , of which any two together must be ...
... half D E describe two arcs cutting each other in F ; from A through F draw the line A G , and it will bisect the angle BAC . PROBLEM VIII . To make a triangle of any three right lines D , E and F , of which any two together must be ...
Σελίδα 40
... half the 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 ...
... half the 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 52
... half the sum of the two un- known angles , To the tangent of half their difference . * This half difference of the two unknown angles , add- ed to their half sum , will give the angle opposite the greater of the two given sides , and ...
... half the sum of the two un- known angles , To the tangent of half their difference . * This half difference of the two unknown angles , add- ed to their half sum , will give the angle opposite the greater of the two given sides , and ...
Σελίδα 53
... Half sum do . 6554 As the sum of the sides AB , AC , 218 2.33846 Is to their difference , 38 1.57978 So is the tang . of half sum of angl . B & C , 65 ° 54 ′ 10.34938 11.92916 To tang . of half their difference , 21 ° 17 ′ 9.59070 Half ...
... Half sum do . 6554 As the sum of the sides AB , AC , 218 2.33846 Is to their difference , 38 1.57978 So is the tang . of half sum of angl . B & C , 65 ° 54 ′ 10.34938 11.92916 To tang . of half their difference , 21 ° 17 ′ 9.59070 Half ...
Άλλες εκδόσεις - Προβολή όλων
A Treatise on Surveying: Containing the Theory and Practice: To Which Is ... John Gummere Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Δημοφιλή αποσπάσματα
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.