Tables of Logarithms of Numbers and of Sines and Tangents for Every Ten Seconds of the Quadrant: With Other Useful TablesHarper & brothers, 1859 - 150 páginas |
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Página 5
... .. Definitions f - 4 7 9 14 10 17 17 18 288 20 23 29 32 36 42 46 48 52 57 59 64 66 71 myry - 81 84 88 BOOK IV . SURVEYING . Instruments for measuring Angles . 90 91 Explanation of the Vernier .. Description of the Theodolite Heights.
... .. Definitions f - 4 7 9 14 10 17 17 18 288 20 23 29 32 36 42 46 48 52 57 59 64 66 71 myry - 81 84 88 BOOK IV . SURVEYING . Instruments for measuring Angles . 90 91 Explanation of the Vernier .. Description of the Theodolite Heights.
Página 20
... measured by the arc intercepted by its sides , a right angle is measured by 90 ° , two right angles by 180 ° , and four right angles are measured by 360 ° . D Cotan . L K Cosine Sec . I Sine Tangent ( 20. ) The complement of an arc is ...
... measured by the arc intercepted by its sides , a right angle is measured by 90 ° , two right angles by 180 ° , and four right angles are measured by 360 ° . D Cotan . L K Cosine Sec . I Sine Tangent ( 20. ) The complement of an arc is ...
Página 44
... measured with the pro- tractor . ( 60. ) IV . The plane scale is a ruler , frequently two feet in length , containing a line of equal parts , chords , sines , tan- gents , & c . For a scale of equal parts , a line is divided into inches ...
... measured with the pro- tractor . ( 60. ) IV . The plane scale is a ruler , frequently two feet in length , containing a line of equal parts , chords , sines , tan- gents , & c . For a scale of equal parts , a line is divided into inches ...
Página 46
... measured from 6 on one arm to 6 on the oth- er arm is the base , it is plain that if any other line be measured across the angle of the sector , the bases of the triangles thus formed will be pro- portional to their sides . Therefore ...
... measured from 6 on one arm to 6 on the oth- er arm is the base , it is plain that if any other line be measured across the angle of the sector , the bases of the triangles thus formed will be pro- portional to their sides . Therefore ...
Página 47
... measured upon the same scale as the given sides . Ex . 2. Given the angle A , 48 ° , the angle C , 113 ° , and the side AC , 795 , to construct the triangle . II . Given two sides and an angle opposite one of them , to find the other ...
... measured upon the same scale as the given sides . Ex . 2. Given the angle A , 48 ° , the angle C , 113 ° , and the side AC , 795 , to construct the triangle . II . Given two sides and an angle opposite one of them , to find the other ...
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Términos y frases comunes
9 I I altitude angle of elevation arithm base chains circle Co-sine Co-tangent complement computed correction cosecant course and distance decimal diameter diff difference of latitude difference of longitude Dist divided equal equator fifth figure find the angles find the area find the Logarithm frustum given number given the angle height Hence horizontal plane hypothenuse inches latitude and departure length LO LO LO logarithmic sine measured meridian middle latitude miles minutes Multiply natural number nautical miles parallel parallel sailing perpendicular places plane sailing Prob Prop proportional quadrant radius Required the logarithmic right-angled spherical triangle right-angled triangle Sandy Hook secant ship sails side AC spherical triangle ABC SPHERICAL TRIGONOMETRY station subtract surface tabular number tang Tangent telescope theodolite Theorem vernier vertical Vulgar Fraction wyll yards zoids ΙΙ ΙΟ
Pasajes populares
Página 20 - The circumference of every circle is supposed to be divided into 360 equal parts, • called degrees, each degree into 60 minutes, and each minute into 60 seconds, etc.
Página 163 - In any spherical triangle, the sines of the sides are proportional to the sines of the opposite angles. In the case of right-angled spherical triangles, this proposition has already been demonstrated.
Página 69 - FIND the area of the sector having the same arc with the segment, by the last problem. Find also the area of the triangle, formed by the chord of the segment and the two radii of the sector.
Página 54 - 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 69 - TO THE NUMBER OF DEGREES IN THE ARC ; So IS THE AREA OF THE CIRCLE, TO THE AREA OF THE SECTOR.
Página 73 - To find the solidity of a pyramid. RULE. Multiply the area of the base by one third of the altitude.
Página vi - The characteristic of the logarithm of ANY NUMBER GREATER THAN UNITY, is one less than the number of integral figures in the given number.
Página 184 - If a heavy sphere, whose diameter is 4 inches, be let fall into a conical glass, full of water, whose diameter is 5, and altitude 6 inches ; it is required to determine how much water will run over ? AHS.