 | Vasiliĭ Nikitich Nikitin, Prokhov Ignatévich Suvorov - 1793 - 146 sider
...belong as well to the arches, as to the angles at the center, which ftand on them. 2 . The circumference of every circle is fuppofed to be divided into 360 equal parts, which are called degrees (poij <xî, gradus) -, and every degree into 60 equal parts, which are called... | |
 | Thomas Simpson - 1800 - 448 sider
...which, it is not only requifite that the peripheries of circles, but alfo that certain right lines, in and about the circle, be fuppofed divided into...equal parts, called degrees ; and each degree into 60 cgual parts, called minutes, and each minute into 60 equal parts, called feconds, or fccond minutes,... | |
 | Samuel Vince - 1800 - 204 sider
...triangle, the other three may be found, in all cafes where the data are fufficient. $-j. The circumference of every circle is fuppofed to be divided into 360 equal parts, called Degrees ; every degree into 60 equal parts called Minutes ; every minute into 60 equal parts called Seconds... | |
 | 1801 - 446 sider
...angular point, is rend in the middle. C 56. The 39° 5 6. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 minutes, each minute into do seconds, and so on. Hence a semicircle contains 1 80 degrees, and a quadrant... | |
 | Alexander Adam - 1802 - 914 sider
...diameter. The di;trne'erj and 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.... | |
 | Benjamin Workman - 1809 - 218 sider
...the middle, but divides it unequally. LeflVr circles are coai* monly parallel to fome great circle7. Every circle is fuppofed to be divided into 360 equal...and each degree into 60 equal parts, called Minutes ; each minute in 60 Seconds, £c. 8. A degree of a great circle, on the earth, contains 60 geographical... | |
 | James Ferguson - 1809 - 574 sider
...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 - 672 sider
...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... | |
 | Robert Gibson - 1811 - 580 sider
...and is double the radius, as AB or DE. fig. 8. m *!6. The circumference of every circle is supposed to be divided into 360 equal parts called degrees,...called minutes, and each minute into 60 equal parts caled seconds, and these into thirds, fourths, &c. these parts being greater or less as the radius... | |
 | John Lee Comstock - 1813 - 448 sider
...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 date, each sign having... | |
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The circumference of every circle is supposed to be divided into 360 equal parts, called degrees; and each degree into 60 minutes, each minute into 60 seconds, and so on. 
