 | Joseph Harris - 1732 - 236 páginas
...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... | |
 | Benjamin Donne - 1796 - 120 páginas
...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... | |
 | William Taylor (teacher of the mathematics.) - 1800 - 556 páginas
...• 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 an... | |
 | John Pinkerton - 1804 - 694 páginas
...called Meridians. Now all circles are supposed to be divided into 360 equal parts, called degrees; every degree into 60 equal parts, called minutes; and every minute into 60 equal parts, called Sfconefi; and degrees, minutes, and seconds, are denoted by these characters, °, ', "; thus 37°.... | |
 | John Bonnycastle - 1806 - 464 páginas
...legs, and having the angular point for its centre. 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 ; &c. So that a semicircle, or half the circumference,... | |
 | James Ferguson - 1809 - 574 páginas
...called the perigee. — These points are directly opposite to each other. Astronomers divide each orbit into 12 equal parts called signs ; each sign into 30 equal parts, called degrees ; each degree into GO equal parts, called minutes ; and every minute into GO equal parts, called seconds. The distance... | |
 | Thomas Keith - 1810 - 478 páginas
...measure of the angle ABC. (H) 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. The angles are measured by the number of "egrees cut... | |
 | Thomas Keith - 1811 - 388 páginas
...14' 43" and its declination 80° "15' 44" north. $ 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, &c. ; a degree is, therefore, only a relative idea,... | |
 | Francis Nichols - 1811 - 162 páginas
...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 degree into 60 equal parts, called minutes; each minute into 6O equal parts, called seconds, &c., the number of degrees, minutes, and seconds,... | |
 | John Lee Comstock - 1813 - 448 páginas
...constellation, and near trfB star a. 762. Each of the 12 signs of the zodiac is divided into 30 smaller parts, called degrees ; each degree into 60 equal parts, called minutes, and each minute into 60 parts, called seconds. The division of the zodiac into signs, is of very ancient... | |
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The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds. 
