The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this ArtE. Duyckinck, 1811 - 508 σελίδες |
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Σελίδα 10
... EXAMPLES . Reduce to a decimal fraction . 4 ) 3.00 .75 = decimal required . For of one acre , mile , yard , or any thing , is equal to of 3 acres , miles , yards , & c . there- fore if 3 be divided by 4 , the quotient 10 DECIMAL FRACTIONS .
... EXAMPLES . Reduce to a decimal fraction . 4 ) 3.00 .75 = decimal required . For of one acre , mile , yard , or any thing , is equal to of 3 acres , miles , yards , & c . there- fore if 3 be divided by 4 , the quotient 10 DECIMAL FRACTIONS .
Σελίδα 12
... 800 640 1600 1600 Reduce 21 minutes 54 seconds to the decimal of a degree . Ans . .365 Reduce 056 of a pole to the decimal of an Acre . Ans . .00035 Reduce 13 cents to the decimal of an Eagle . 12 DECIMAL FRACTIONS .
... 800 640 1600 1600 Reduce 21 minutes 54 seconds to the decimal of a degree . Ans . .365 Reduce 056 of a pole to the decimal of an Acre . Ans . .00035 Reduce 13 cents to the decimal of an Eagle . 12 DECIMAL FRACTIONS .
Σελίδα 13
... acre . 4 number of roods in [ an acre . 1.3500 40 = number of perches 14.0000 [ in a rood . The value , therefore , is 1 rood 14 perches . What is the value of .6875 of a yard ? DECIMAL FRACTIONS . 13.
... acre . 4 number of roods in [ an acre . 1.3500 40 = number of perches 14.0000 [ in a rood . The value , therefore , is 1 rood 14 perches . What is the value of .6875 of a yard ? DECIMAL FRACTIONS . 13.
Σελίδα 14
... acres 3 roods of land can be purchased for 93 dollars 60 cts . how much will 15 acres 1 rood cost at that rate ? 3 acs . 3 rds . 15 acs . 1 14 DECIMAL FRACTIONS .
... acres 3 roods of land can be purchased for 93 dollars 60 cts . how much will 15 acres 1 rood cost at that rate ? 3 acs . 3 rds . 15 acs . 1 14 DECIMAL FRACTIONS .
Σελίδα 15
... acres . = 15.25 acres . = $ 93.60 93.60 : 15.25 468 00 18720 46800 9360 $ 3.75 ) 1427.4000 ( 380.64 = Answer . 1125 3024 3000 2400 2250 1,500 1500 If a clock gain 14 seconds in 5 days 6 hours , low much will it gain in 17 days 15 hours ...
... acres . = 15.25 acres . = $ 93.60 93.60 : 15.25 468 00 18720 46800 9360 $ 3.75 ) 1427.4000 ( 380.64 = Answer . 1125 3024 3000 2400 2250 1,500 1500 If a clock gain 14 seconds in 5 days 6 hours , low much will it gain in 17 days 15 hours ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
acres altitude Answer arch azimuth base bearing blank line centre chains and links chord circle circumferentor Co-sec Co-tang column compasses contained decimal difference distance line divided divisions draw east Ecliptic edge feet field-book figures fore four-pole chains geom given number half the sum Horizon glass hypothenuse inches instrument Lat Dep Lat latitude length logarithm measure meridian distance multiplied natural co-sine natural sine needle Nonius number of degrees object observed off-sets opposite parallel parallelogram pegs perches perpendicular plane pole pole star Portmarnock PROB protractor Quadrant quotient radius right angles right line scale of equal SCHOLIUM screw Secant sect Sextant side sights square station stationary distance subtract Sun's survey taken Tang tangent theo theodolite trapezium triangle ABC trigonometry two-pole chains vane versed sine vulgar fraction whence
Δημοφιλή αποσπάσματα
Σελίδα 38 - 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.
Σελίδα 25 - 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.
Σελίδα 197 - RULE. From half the sum of the three sides subtract each side severally.
Σελίδα 106 - 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.
Σελίδα 27 - The VERSED SINE of an arc is that part of the diameter which is between the sine and the arc. Thus BA is the versed sine of the arc AG.