Key to System of practical mathematics. 2 pt. No.xvii |
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Página 18
... feet = 1.698970 do . 1.698970 186.27 6 = 2.270146 111.92 2.048919 height of the eye . 192-27 = tower . " " ( 2. ) 15 ° 32 ′ 18 ′′ -9 ° 56 ′ 26 ′′ -5 ° 35 ′ 52 " Log . cosec . 5 ° 35 ′ 52 ′′ = 11.010798 Log . sin . 15 ° 32 ′ 18 ...
... feet = 1.698970 do . 1.698970 186.27 6 = 2.270146 111.92 2.048919 height of the eye . 192-27 = tower . " " ( 2. ) 15 ° 32 ′ 18 ′′ -9 ° 56 ′ 26 ′′ -5 ° 35 ′ 52 " Log . cosec . 5 ° 35 ′ 52 ′′ = 11.010798 Log . sin . 15 ° 32 ′ 18 ...
Página 38
... feet and inches by feet and inches , the denomination in the product next to feet , though commonly called inches , does not represent square inches , but a surface that is 12 inches long and 1 inch broad , being the 12th part of a ...
... feet and inches by feet and inches , the denomination in the product next to feet , though commonly called inches , does not represent square inches , but a surface that is 12 inches long and 1 inch broad , being the 12th part of a ...
Página 39
... feet in a square yard , gives 4811 the Ans . ( 4. ) 1535 links Multiplied by 1270 107450 3070 1535 19,49450-19 ac . 1 ro . 39.12 poles . 4 1,97800 40 39,12000 ( 5. ) 320 feet Multiplied by 13 160 960 320 36x9 324 ) 4320 ( 134 roods ...
... feet in a square yard , gives 4811 the Ans . ( 4. ) 1535 links Multiplied by 1270 107450 3070 1535 19,49450-19 ac . 1 ro . 39.12 poles . 4 1,97800 40 39,12000 ( 5. ) 320 feet Multiplied by 13 160 960 320 36x9 324 ) 4320 ( 134 roods ...
Página 43
... feet , and 16809-186 sq . yards . 60 × 40 = 60 × 20 = 1200 sq . feet . ( 1. ) ( 2. ) ( 3. ) ( 5400 links ) = 2 2952 links 2700 2066400 5904 Sq . links 79,70400 79 ac . 2 ro . 32.64 perches . 4 2,81600 40 32.64000 ( 4. ) ( 56.75 × 45 ) ...
... feet , and 16809-186 sq . yards . 60 × 40 = 60 × 20 = 1200 sq . feet . ( 1. ) ( 2. ) ( 3. ) ( 5400 links ) = 2 2952 links 2700 2066400 5904 Sq . links 79,70400 79 ac . 2 ro . 32.64 perches . 4 2,81600 40 32.64000 ( 4. ) ( 56.75 × 45 ) ...
Página 44
... = 45 Log . 1.653213 45-39 = 6 = 778151 99 45-36 = 9 " 9 = 954243 45-15 = 0 = 1.477121 " " 2 ) 4.862728 Ans . 30 yds . 270 feet = 2 · 431364 Log . area . Or the sides expressed in yards are 13 , 12 42 KEY - MENSURATION OF SURFACES .
... = 45 Log . 1.653213 45-39 = 6 = 778151 99 45-36 = 9 " 9 = 954243 45-15 = 0 = 1.477121 " " 2 ) 4.862728 Ans . 30 yds . 270 feet = 2 · 431364 Log . area . Or the sides expressed in yards are 13 , 12 42 KEY - MENSURATION OF SURFACES .
Términos y frases comunes
a+b+c AABC ABCD acres base binomial theorem bisected centre changing the signs chord circle circumference coefficients collecting the terms completing the square cosec denominator diameter difference distance dividing divisor equal extracting the root feet find the area find the differential fraction given equation gives greater segment half the sum height hence the area hypotenuse inches inverted latitude least common multiple Let ABC Log.cosec logarithm miles Mult Multiply number sought perp perpendicular poles Problem XI Prop question radius rectangle semiperimeter sine slant slant height solidity square root substituting Subt Subtract surf Tabular area tangent Theorem third side transp transposing transposition triangle Trig value of x wherefore whole arc whole surface yards دو
Pasajes populares
Página 74 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz.
Página 75 - If the vertical angle of a triangle be 'bisected 'by a straight line which also cuts the base, the rectangle contained by the sides of the triangle is equal to the rectangle contained by the segments of the base, together with the square on the straight line which bisects the angle.
Página 9 - Let x measure у by the units in n, then it will measure cy by the units in nc. 2d. If a quantity measure two others, it will measure their sum or difference. Let a be contained...
Página 15 - ... sin(a + b + c). Again (a) represents the coarse ROM, and bands b and c are two controls of the fine-tuned ROMs so that a < 90°, b < 90 • 2~a and c < 90 • 2~(a + 6). This is shown in Fig. 7-7. Sunderland showed that the trigonometric identity can be written as sin(a + b + c) = sin(a + 6) cos c + cos a cos b sin...
Página 10 - The truth of this rule depends upon these two principles ; 1". If one quantity measure another, it will also measure any multiple of that quantity. Let x measure y by the units in n, then it will measure cy by the units in nc.
Página 139 - Arc, on the Sine and Cosine of an Arc in terms of the Arc itself, and a new Theorem for the Elliptic Quadrant.
Página 137 - The differential of the logarithm of a function is equal to the differential of the function, divided by the function itself.
Página 149 - The pyramid may be conceived to be made up of an infinite number of planes parallel to ABC.
Página 81 - ... sum of any number of quantities is equal to the sum of the corresponding functions of each of these quantities, will be called distributive
Página 86 - We thus derive the following method for multiplying two binomials which have a common first term : The first term of the product is the square of the common first terms of the binomials.