 | Joseph Emerson Worcester - Atlases - 1822 - 322 pages
...four, the two tropics, and (he two polar circles. 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 00 equal parts, called seconds. They are marked thus, 23° 28' 16" ; i- e. 33... | |
 | William Jillard Hort - 1822 - 308 pages
...is the measure of the angle contained by the lines CA and CH. 2. If the circumference of a circle 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 ; and so on ; then, as many degrees, minutes, and... | |
 | Anthony Nesbit, W. Little - Measurement - 1822 - 916 pages
...of a circle bounded by an arc sad two radii. 47. 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, &c. 48. The arc of a quadrant contains 90 degrees,... | |
 | Rev. John Allen - Astronomy - 1822 - 508 pages
...called acute.* * Mathematicians have supposed the whole circumference of a circle to be divided in 360 equal parts, called degrees, each degree into 60 equal parts, called minutes, and each minute into 60 equal parts, called seconds, Stc. and a circle being described from the vertex... | |
 | Anthony Nesbit - Surveying - 1824 - 476 pages
...of a circle bounded by an arc and two radii. 47. 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. 48. The arc of a quadrant contains 90 degrees,... | |
 | George G. Carey - Astronomy - 1825 - 274 pages
...the plane of the circle. 8. Degrees, fyc. — All circles, whether great or small, are 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, &c.f 9. An Angle is the inclination of two lines... | |
 | Thomas Keith - Navigation - 1826 - 442 pages
...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...degree into 60 equal parts called minutes, each minute into 60 equal parts called seconds. The angles are measured by the number of degrees cut from the circle... | |
 | Miles Bland - Geometry - 1827 - 458 pages
...angle (7.) Till lately. Geometers almost unanimously agreed to divide the circumference of the circle into 360 equal parts called Degrees ; each degree into 60 equal parts called Minutes; and each minute into 60 equal parts called Seconds, &c. This method appeared to the Greek Geometers... | |
 | Thomas Kerigan - Nautical astronomy - 1828 - 776 pages
...hemisphere, and the other, the southern hemisphere. — The equator, like all other great circles, is divided into 360 equal parts, called degrees ; each...into 60 equal parts, called minutes } each minute into 60 equal parts, called seconds, and so on. The Meridian, of any place on the earth is a great... | |
 | Montgomery Robert Bartlett - Education - 1828 - 426 pages
...the circle inUlour equal parts called quadrants. 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; and these into thirds, &c. Now, as all circles... | |
| |
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. 
