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 167
... Co. 8.86902 dep . of do . 4.96 W. 0.69548 rad . 10.00000 tang . of bearing of EA , S. 20 ° 9 ' W. 9.56450 As rad . Ar . Co. 0.00000 : sec . of bearing 20 ° 9 ′ 10.02743 :: diff . of lat . 13.52 1.13098 : EA 14.40 1.15841 Now we have ...
... Co. 8.86902 dep . of do . 4.96 W. 0.69548 rad . 10.00000 tang . of bearing of EA , S. 20 ° 9 ' W. 9.56450 As rad . Ar . Co. 0.00000 : sec . of bearing 20 ° 9 ′ 10.02743 :: diff . of lat . 13.52 1.13098 : EA 14.40 1.15841 Now we have ...
Σελίδα 169
... Co. 0.06124 8.48638 2.49129 :: rad . : DH 10.94 DA 32.63 10.00000 1.03891 As DA + DH 43.57 : DA - DH 21.69 AHD + DAH :: tang . 59 ° 51 ' Ar . Co. 8.36081 1.33626 10.23594 2 : tang . AHD - DAH 2 40 36 9.93301 Angle AHD 100 27 Do. DAH ...
... Co. 0.06124 8.48638 2.49129 :: rad . : DH 10.94 DA 32.63 10.00000 1.03891 As DA + DH 43.57 : DA - DH 21.69 AHD + DAH :: tang . 59 ° 51 ' Ar . Co. 8.36081 1.33626 10.23594 2 : tang . AHD - DAH 2 40 36 9.93301 Angle AHD 100 27 Do. DAH ...
Σελίδα 174
... Co. 9.28233 1.45225 10.00000 tang . changed bearing of HA , S. 79 ° 34 ' W. 10.73458 As rad . Subtract 27 00 Proper bearing of HA , S. 52 34 W. : sec . changed bearing of HA , 79 ° 34 ′ :: diff . lat . 5.22 Ar . Co. 0.00000 10.74210 ...
... Co. 9.28233 1.45225 10.00000 tang . changed bearing of HA , S. 79 ° 34 ' W. 10.73458 As rad . Subtract 27 00 Proper bearing of HA , S. 52 34 W. : sec . changed bearing of HA , 79 ° 34 ′ :: diff . lat . 5.22 Ar . Co. 0.00000 10.74210 ...
Σελίδα 187
... tang . bearing of NI , S. 60 ° 52 ′ W. sec . bearing of NI , 60 ° 52 ′ As rad . :: diff . lat . do . 13.80 dist . NI , 28.35 ch . Ar . Co. 8.86012 1.39375 10.00000 10.25387 Ar . Co. 0.00000 10.31261 1.13988 1.45249 1 Hence IN bears , N ...
... tang . bearing of NI , S. 60 ° 52 ′ W. sec . bearing of NI , 60 ° 52 ′ As rad . :: diff . lat . do . 13.80 dist . NI , 28.35 ch . Ar . Co. 8.86012 1.39375 10.00000 10.25387 Ar . Co. 0.00000 10.31261 1.13988 1.45249 1 Hence IN bears , N ...
Σελίδα 108
... Co - tang . Secant . Co - secant 0 10.000 1.0000 0.000000 Infinite . 10.00000 Infinite . 60 6.46373 13.53627 10.00000 13.53627 76476 23524 59 00000 23524 58 6.46373 10.00000 2 76476 00000 94085 7 06579 00000 94085 05915 00000 05915 57 ...
... Co - tang . Secant . Co - secant 0 10.000 1.0000 0.000000 Infinite . 10.00000 Infinite . 60 6.46373 13.53627 10.00000 13.53627 76476 23524 59 00000 23524 58 6.46373 10.00000 2 76476 00000 94085 7 06579 00000 94085 05915 00000 05915 57 ...
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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.