 The circumference of a circle is supposed to be divided into 360 equal parts, called degrees; each degree into 60 minutes, and each minute into 60 seconds. Degrees, minutes, and seconds are designated by the characters °, ', ". Thus 23° 14' 35" is read...  The Illustrative Practical Arithmetic ... - Page 168by George Augustus Walton - 1873Full view - About this book
 | 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 degree into 60 equal parts, called minutes } each minute into 60 equal parts, called seconds, and so on. The Meridian,... | |
 | James Hayward - Geometry - 1829 - 218 pages
...designated by a circular arc. For this purpose, the ancients divided the circumference of the circle into 360 equal parts, called degrees ; each degree...into 60 minutes ; and each minute into 60 seconds. And the magnitude of an angle they expressed by the degrees, (°) minutes (') and seconds (",) which... | |
 | James Charlton - Geography - 1829 - 250 pages
...from a point withitt it, called the centre. ISsery cjrxje is. supppsed Ip b^djyided into 360 equai parts, called degrees, each degree into 60 minutes, and each minute into 60 seconds. Degrees are marked with a small cipher, minutes with -one dash, and' seconds' With two dashes. Thus,... | |
 | Francis Joseph Grund - Geometry, Plane - 1830 - 274 pages
...the arcs intercepted between their legs are in proportion to the angles at the centre. Remark 2. If the circumference of a circle is divided into 360 equal parts, called degrees; each decree again into 60 equal parts, called minutes; each minute again into 60 equal parts, called seconds,... | |
 | Jeremiah Day - Measurement - 1831 - 394 pages
...latter, a circle is introduced. The periphery of every circle, whether great or small, is supposed to be divided into 360 equal parts called degrees, each degree into 60 minutes, each minute into 60 seconds, each second into 60 thirds, &c, marked with the characters °, ', ", '",... | |
 | Francis Joseph Grund - Geometry, Plane - 1834 - 212 pages
...the arcs intercepted between their legs are in proportion to the angles at the centre. Remark 2. If the circumference of a circle is divided into 360 equal parts, called degrees ; each degree again into 60 equal parts, called minutes; each minute again into 60 equal parts, called seconds, &c.;... | |
 | William Smyth - Plane trigonometry - 1834 - 104 pages
...described with equal radii. ' 10. The entire circumference of every circle, whether great or small, is divided into 360 equal parts called degrees, each degree into 60 equal parts called minutes, each minute into 60 equal parts called seconds, each second into 60 equal... | |
 | Adrien Marie Legendre - Geometry - 1836 - 394 pages
...OF THE CIRCUMFERENCE. I. For the purposes of trigonometrical calculation, the cir cumference of the 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. The semicircumference,... | |
 | Augustus De Morgan - Astronomy - 1836 - 144 pages
...out of the use of the words minute and second in two different senses. The circle is divided into 360 degrees, each degree into 60 minutes, and each minute into 60 seconds. The latter two are called minutes and seconds of space — it should rather be of angle. The division... | |
 | Charles Davies - Navigation - 1837 - 342 pages
...the utmost accuracy. 41. For the purposes of trigonometrical calculations, the circumference of the 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. As the circumference... | |
| |
