The young student's pocket companion, or Arithmetic, geometry, trigonometry, and mensuration. With an appendix |
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Σελίδα 134
... chords . Fig . 6 RULE . First draw a line , and with a radius of 60 from the fcale of chords , called a sweep of 60 , and one foot on the angular point ftrike an arch beginning at the line , on which arch fet with your compafles as a ...
... chords . Fig . 6 RULE . First draw a line , and with a radius of 60 from the fcale of chords , called a sweep of 60 , and one foot on the angular point ftrike an arch beginning at the line , on which arch fet with your compafles as a ...
Σελίδα 135
... chord of a certain radius , from the scale of chords to an arch of the fame radius ; therefore to measure any angle you transfer the chord in your figure from an arch , made with the radius of 60 degrees from your scale of chords ...
... chord of a certain radius , from the scale of chords to an arch of the fame radius ; therefore to measure any angle you transfer the chord in your figure from an arch , made with the radius of 60 degrees from your scale of chords ...
Σελίδα 136
... chord of the given or made angle , to the arch where the other is to be , and its done . To project any right angled triangle with the proper data . Here are 4 cafes or varietys . Cafe ft . The hypothenufe and angles given , to draw the ...
... chord of the given or made angle , to the arch where the other is to be , and its done . To project any right angled triangle with the proper data . Here are 4 cafes or varietys . Cafe ft . The hypothenufe and angles given , to draw the ...
Σελίδα 137
... chords . By this method is cafe fourth and fifth of plain fail- ing conftrufted . Cafe 4th . The legs given to draw the triangle & c . RULE . Draw the bafe , and at one end thereof raife a perpendicular , make each of thefe lines its ...
... chords . By this method is cafe fourth and fifth of plain fail- ing conftrufted . Cafe 4th . The legs given to draw the triangle & c . RULE . Draw the bafe , and at one end thereof raife a perpendicular , make each of thefe lines its ...
Σελίδα 138
... chords , and the third fide on the scale of equal parts as before . N. B. This is called an ambiguous cafe , as always from this data may two triangles be drawn . CASE . 3d . Two fides and their included or contained angle given , to ...
... chords , and the third fide on the scale of equal parts as before . N. B. This is called an ambiguous cafe , as always from this data may two triangles be drawn . CASE . 3d . Two fides and their included or contained angle given , to ...
Συχνά εμφανιζόμενοι όροι και φράσεις
affigned alfo aliquot amount angle annuity anſwer Arithmetic bafe baſe Bufhels Cafe 3d Cafe 4th Cafe ift Chalders chord coft confift cube cypher decimal denomination diameter Dimenfions diſtance divide Divifion divifor dominical letter eclipfes elipfis Epact equal exchange faid fame farthings fecond feet fegment fhare fhillings fide firft firſt folidity fome fquare fquare root fraction fruftum fubtract fuch furface Gallons given number Guilders half hypothenufe inches intereft laft laſt lefs length logarithm Meaſure Milions Moidores months moon muft Multiply muſt neceffary number of yards obferved oppofite pence perp perpendicular Piece of eight plain pound pound Sterling prefent worth price per yard principal propofed proportion purchaſe quarters query quotient radius rate per cent ratio refpecting remainder repetend RULE Sterling ſtock Tare term thereof Thouſands triangle Trigonometry uſeful Vulgar Fractions weight whofe ΙΟ
Δημοφιλή αποσπάσματα
Σελίδα 120 - To the remainder bring down the first figure in the next period, and call it the dividend. 4. Involve the root to the next inferior power to that which is given, and multiply, it by the number denoting the given power, for a divisor. 5., Find how many times the divisor may be had in the dividend, and the quotient will be another figure of the root.
Σελίδα 115 - ... and to the remainder bring down the next period for a dividend. 3. Place the double of the root already found, on the left hand of the dividend for a divisor. 4. Seek how often the divisor is contained...
Σελίδα 74 - To reduce fractions to a common denominator RULE. Multiply each numerator into all the denominators, except its own, for a new numerator, and all the denominators together for a common denominator. ' EXAMPLES. 1. Reduce 7 and -= to a common denominator.
Σελίδα 120 - ... quotient figure by common division, and annex it to the root ; then involve the whole root into the given power, and call that the subtrahend. 6. Subtract that number from as many points of the given power as...
Σελίδα 15 - TIMI. 60 Seconds .«••.......... — i Minute. 60 Minutes =i Hour. 24 Hours ^ . . =i Day. 7 Days = i Week.
Σελίδα 76 - To reduce a fraction of one denomination to the fraction of another, but less, retaining the sanье value. RULE. Multiply the numerator by the parts contained in the several denominations between it, and that you would reduce it to, for a new numerator, and place it over the given denominator.
Σελίδα 12 - APOTHECARIES' WEIGHT 20 grains i scruple 3 scruples I dram 8 drams i ounce 12 ounces I pound...
Σελίδα 120 - ... from the given number. 3. Bring down the firft figure in the next point to the remainder, and call it the dividend. 4. Involve the root into the next inferior power to that which is given ; multiply it by the given power, and call it the diviibr.
Σελίδα 12 - Apothecaries' pound and ounce, and the pound and ounce Troy, are the same, only differently divided and subdivided.
Σελίδα 187 - The surface of a sphere Is equal to four times the area of one...