The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skillful Practice of this ArtE. Duyckinck, 1821 - 544 páginas |
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Página 18
... side of the divisor , ( because the first root found is in the ten's place ) the same as in the Algebraic form , in the same manner it can be demonstrated if there be three or more terms . another over the place of hundreds , and so on ...
... side of the divisor , ( because the first root found is in the ten's place ) the same as in the Algebraic form , in the same manner it can be demonstrated if there be three or more terms . another over the place of hundreds , and so on ...
Página 44
... side , but make the angles ADC , CDB on each side equal to each other , then those angles are called right angles , and the line CD a perpendi- cular . 11. An obtuse angle is that which is wider or greater than a right one , as the ...
... side , but make the angles ADC , CDB on each side equal to each other , then those angles are called right angles , and the line CD a perpendi- cular . 11. An obtuse angle is that which is wider or greater than a right one , as the ...
Página 48
... sides , contains a greater or less number of degrees of the whole circle . 29. The sine , tangent , and secant of an ... sides ; and 2d , to its angles . 33. In respect to its sides it is either equilate- ral , having the three sides ...
... sides , contains a greater or less number of degrees of the whole circle . 29. The sine , tangent , and secant of an ... sides ; and 2d , to its angles . 33. In respect to its sides it is either equilate- ral , having the three sides ...
Página 49
... side may be called the base , and the other two the sides . 40. The perpendicular height of a triangle is a line drawn from the vertex to the base perpen- dicularly thus if the triangle ABC , be propos- ed , and BC be made its base ...
... side may be called the base , and the other two the sides . 40. The perpendicular height of a triangle is a line drawn from the vertex to the base perpen- dicularly thus if the triangle ABC , be propos- ed , and BC be made its base ...
Página 50
... sides are called polygons ; if the sides are all equal to each other , they are called regular po- lygons . They sometimes are named from the number of their sides , as a five - sided figure is called a pentagon , one of six sides a ...
... sides are called polygons ; if the sides are all equal to each other , they are called regular po- lygons . They sometimes are named from the number of their sides , as a five - sided figure is called a pentagon , one of six sides a ...
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Términos y frases comunes
ABCD acres altitude Answer arch base bearing centre chains and links circle circumferentor Co-sec Co-tang column compasses contained cube root decimal diagonal difference of latitude Dist divided divisions divisor draw east Ecliptic edge EXAMPLE feet field-book figure four-pole chains geometrical series given angle given number half the sum height Hence Horizon glass hypothenuse inches instrument length Logarithms measure meridian distance multiplied Natural Co-sines natural number natural sine Nonius number of degrees object observed off-sets opposite parallelogram perches perpendicular plane pole PROB proportional protractor Quadrant quotient radius rhombus right angles right line screw Secant sect semicircle side square root station subtract survey taken tance Tang tangent theo theodolite trapezium triangle ABC trigonometry two-pole chains vane versed sine vulgar fraction whence
Pasajes populares
Página 246 - ... that triangles on the same base and between the same parallels are equal...
Página 58 - 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.
Página 231 - RULE. From half the sum of the three sides subtract each side severally.
Página 45 - 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.
Página 14 - Then multiply the second and third terms together, and divide the product by the first term: the quotient will be the fourth term, or answer.
Página 5 - His method is founded on these three considerations: 1st, that the sum of the logarithms of any two numbers is the logarithm of the product of...
Página 91 - ... scale. Given the length of the sine, tangent, or secant of any degrees, to find the length of the radius to that sine, tangent, or secant.
Página 35 - DIVISION BY LOGARITHMS. RULE. From the logarithm of the dividend subtract the logarithm of the divisor, and the number answering to the remainder will be the quotient required.
Página 30 - Then, because the sum of the logarithms of numbers, gives the logarithm of their product ; and the difference of the logarithms, gives the logarithm of the quotient of the numbers ; from the above two logarithms, and the logarithm of 10, which is 1, we may obtain a great many logarithms, as in the following examples : EXAMPLE 3.
Página 211 - At 170 feet distance from the bottom of a tower, the angle of its elevation was found to be 52° 30' : required the altitude of the tower ? Ans.