Surveying and Navigation, with a Preliminary Treatise on Trigonometry and MensurationVan Antwerp, Braggs & Company, 1864 - 490 páginas |
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Página 54
... miles the earth's radius . - P 57 ′ 2.3 " the moon's horizontal parallax . Required h , the distance of the moon from the earth . Ans . h238889 miles . = 3. Given Sp 3963.35 miles - the earth's radius . P8.9 " the sun's horizontal ...
... miles the earth's radius . - P 57 ′ 2.3 " the moon's horizontal parallax . Required h , the distance of the moon from the earth . Ans . h238889 miles . = 3. Given Sp 3963.35 miles - the earth's radius . P8.9 " the sun's horizontal ...
Página 58
... miles . C = 11.72 miles . a = 10.91 miles . 71. Case II . Giren two sides and an angle opposite one of them , re- quired the remaining parts . 1. WHEN THE GIVEN ANGLE IS ACUTE . Let the sides a and b and the angle A be given , and the ...
... miles . C = 11.72 miles . a = 10.91 miles . 71. Case II . Giren two sides and an angle opposite one of them , re- quired the remaining parts . 1. WHEN THE GIVEN ANGLE IS ACUTE . Let the sides a and b and the angle A be given , and the ...
Página 213
... miles , or one side of a township , requires a change of 5 ' 12 " on the latitude arc . In running east and west lines , the sights are set at 90 ° on the limb , and the line run at right angles to the meridian ; but this line , if ...
... miles , or one side of a township , requires a change of 5 ' 12 " on the latitude arc . In running east and west lines , the sights are set at 90 ° on the limb , and the line run at right angles to the meridian ; but this line , if ...
Página 216
... miles to the north of the base line another east and west line is run , and six miles to the north of this another , and so on . Every fifth parallel from the base is called a standard parallel , or correction line . Six miles to the ...
... miles to the north of the base line another east and west line is run , and six miles to the north of this another , and so on . Every fifth parallel from the base is called a standard parallel , or correction line . Six miles to the ...
Página 217
... miles , containing 640 acres ; each section into four quarter sections , each quarter section into two half - quarter sec- tions , and each half - quarter section into two quarter- quarter sections . These are called legal subdivisions ...
... miles , containing 640 acres ; each section into four quarter sections , each quarter section into two half - quarter sec- tions , and each half - quarter section into two quarter- quarter sections . These are called legal subdivisions ...
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Términos y frases comunes
a. c. log ABCD adjacent angles adjacent sides altitude angle is equal arc increases base line C₁ chains clamp co-sine compass cosec Cotang denote departure diameter difference of level divided east escribed circles Examples feet field notes Find the angle find the area formulas frustum given side height hence horizontal hypotenuse included angle increases from 90 instrument intersection latitude links dist logarithm longitude M.
M. Cosine M.
M. Sine mantissa meander miles minus needle negative number corresponding offsets opposite angle parallel sailing parallelogram perpendicular plane plane sailing positive quarter section corner radius rhumb line right angle sailing secant ship side adjacent sin A sin solar compass spherical triangle stake standard parallel station survey surveyor Tang tangent telescope trapezoid variation vernier versed-sine vertex vertical Willamette Meridian
Pasajes populares
Página 110 - I. The sine of the middle part is equal to the product of the tangents of the adjacent parts.
Página 34 - If two triangles have two angles and the included side of the one, equal to two angles and the included side of the other, each to each, the two triangles will be equal.
Página 258 - All the corners marked in the surveys, returned by the surveyor general, or by the surveyor of the lands south of the state of Tennessee, respectively, shall be established as the proper corners of sections, or subdivisions of sections, which they were intended to designate ; and the corners of half and quarter sections, not marked on said surveys, shall be placed as nearly as possible equidistant from those two corners which stand on the same line.
Página 22 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Página 19 - To Divide One Number by Another, Subtract the logarithm of the divisor from the logarithm of the dividend, and obtain the antilogarithm of the difference.
Página 144 - Any angle is greater than the difference between 180° and the sum of the other two angles.
Página 124 - That is, the sines of the sides of a spherical triangle are proportional to the sines of the opposite angles.
Página 65 - C' (89) (90) (91) (92) (93) 112. In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference.
Página 145 - A cos 6 = cos a cos c + sin a sin c cos B cos c = cos a cos 6 + sin a sin 6 cos C Law of Cosines for Angles cos A = — cos B...
Página 162 - Now, since the areas of similar polygons are to each other as the squares of their homologous sides...