The circumference of every circle is supposed to be divided into 360 equal parts called degrees, each degree into 60 equal parts called minutes, each minute into 60 equal parts called seconds. Elements of Surveying - Página 25por Charles Davies - 1830 - 300 páginasVista completa - Acerca de este libro
| Joseph Harris - 1732 - 190 páginas
...Pole is placed, and the opppfite one is the Southern Hemifphere. The Aftronomers divide all Circles **into 360 equal Parts called 'Degrees, each Degree into 60 equal Parts called Minutes,** each Minute into 60 Seconds, &c. But befides this Divifion into Degrees, the Equir noftial is commonly... | |
| Robert Shirtcliffe - 1740 - 283 páginas
...divided the Circumference of a Circle into 360 equal Parts, each of which they called a Degree ; and **each Degree into 60 equal Parts called Minutes ; and each Minute into 60** Parts called Seconds, and fo on to thirds, fourths, &c. every Arch of a Circle, being denoted by the... | |
| Robert Simson - 1775 - 520 páginas
...circumference of a circle is fuppofed to be divided into H h ' 360 360 equal parts called degrees, and **each degree into 60 equal parts called minutes, and each minute into** 6e equal parts called feconds, &c. And as many degrees, minutes, feconds, &c as are contained in any... | |
| Benjamin Donne - 1796
...calculating the proportion which angles bear to each other, fuppofe the circumference of every circle **to be divided into 360 equal parts, called Degrees ; each degree into 60 equal parts, called minutes** ; each minute into 60 equal parts named feconds, &c. Ar. B. Sometimes the circumference of a circle... | |
| Alexander Adam - 1802 - 858 páginas
...radii of the fame circle are always equal to one another. The circumference of every circle is fuppofed **to be divided into 360 equal parts, called degrees ; each degree into 60** mi* ñutes \ each minute into 60 feccnds ; and thefe into thirds, fourths, &c. greater or ¡efs according... | |
| John Bonnycastle - 1806 - 419 páginas
...arc of a circle contained between its two legs, and having the angular point for its centre. Every **circle is supposed to be divided into 360 equal parts,...; each degree into 60 equal parts, called minutes** ; each minute into 60 equal parts, called seconds ; &c. So that a semicircle, or half the circumference,... | |
| 1808 - 272 páginas
...Ecliptic. This circle we suppose to be divided into 12 equal parts, called Signs ; each sign . into 30 **equal parts, called Degrees ; each degree into 60 equal parts called Minutes ; and** every minute into 60 equal parts, called Seconds; so that a second is the 60th part of a minute ; a... | |
| James Ferguson, Jeremiah Horrocks - 1809 - 533 páginas
...ecliptic. tic. This circle we suppose to be divided into 12 equal parts, called signs ; each sign into 30 **equal parts, called degrees; each degree into 60 equal parts, called minutes; and each minute into 60** into 60 equal parts, called seconds : so that a second Plate I. is the 60th part of a minute ; a minute... | |
| John Ewing - 1809 - 538 páginas
...another. Every circle, whether large or small, is supposed to be divided into 360 equal parts, which are **called degrees, each degree into 60 equal parts called minutes, and each minute into 60** seconds, and so on in a sixagesimal division as far as you please. If the earth be supposed to turn... | |
| Thomas Keith - 1810 - 420 páginas
...measure of the angle aBC and the arc DE is the measure of the angle ABC. (H) The circumference of every **circle is supposed to be divided into 360 equal parts...degrees, each degree into 60 equal parts called minutes,** each minute into 60 equal parts called seconds. The angles are measured by the number of "egrees cut... | |
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