| 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...60 equal Parts called Minutes, each Minute into 60** Seconds, &c. But befides this Divifion into Degrees, the Equir noftial is commonly divided into 24... | |
| 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...parts, called minutes ; each minute into 60 equal parts** named feconds, &c. Ar. B. Sometimes the circumference of a circle is called a circle; as when it is... | |
| William Taylor - 1800 - 519 páginas
...called a' femi-eircle • half the diameter is called the Radius. 8. The circumference of every circle **is divided into 360 equal parts called Degrees ; each degree into 60 equal parts, called Minutes** ; and each minute into 60 equal parts, called Seconds, &c. Any part of the the circumference is called... | |
| John Bonnycastle - 1806 - 419 páginas
...contained between its two legs, and having the angular point for its centre. Every circle is supposed to be **divided into 360 equal parts, called degrees ; each...; each minute into 60 equal parts, called seconds** ; &c. So that a semicircle, or half the circumference, contains 1 80 degrees ; and a quadrant, or fourth... | |
| 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... | |
| 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... | |
| Thomas Keith - 1810 - 420 páginas
...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 called degrees, each...minutes, each minute into 60 equal parts called seconds.** The angles are measured by the number of "egrees cut from the circle by the lines which form the B... | |
| Thomas Keith - 1811 - 346 páginas
...year 1804, was 13° 14' 43" and its declination 80° "15' 44" north. $ Every circle is supposed to be **divided into 360 equal parts, called degrees ; each...; each minute into 60 equal parts called seconds,** &c. ; a degree is, therefore, only a relative idea, and not an absolute quantity, except when applied... | |
| Francis Nichols - 1811 - 128 páginas
...other circle, subtending the same angle ABC. 5. COR. 4. Hence, if a circle of any radius whatever be **divided into 360 equal parts, called degrees, each...into 60 equal parts, called minutes; each minute into** 6O equal parts, called seconds, &c., the number of degrees, minutes, and seconds, intercepted by two... | |
| Edward Augustus Kendall - 1811
...contained between the two legs, having the angular point for its centre. Ev.ery circle is supposed to be **divided into 360 equal parts, called degrees ; each degree into 60 equal** parti, called minutes $ each minute into' 60 equal parts, called seconds. " An angle is said to be... | |
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