| Nathan Scholfield - Conic sections - 1845
...the circle is supposed to be divided into 360 equal parts, called degrees, and each of those degrees **is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds** ; and so on, to thirds, fourths, &c. These divisions are designated by the following characters, 0... | |
| Nathan Scholfield - Conic sections - 1845 - 232 pages
...the circle is supposed to be divided into 360 equal parts, called degrees, and each of those degrees **is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds** ; and so on, to thirds, fourths, &c. These divisions are designated by the following characters, °... | |
| Scottish school-book assoc - 1845
...circle is supposed to be divided into 300 equal parts, called degrees, and each degree is supposed to be **divided into 60 equal parts, called minutes, and each minute into 60 equal parts, called seconds.** Degrees, minutes, and seconds, are distinguished by the following marks : — 7° 3' 24", which is... | |
| Ezra Otis Kendall - Astronomy - 1845 - 365 pages
...that circle. Every circle is considered as divided into 360 equal parts, called degrees ; each degree **into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.** They are marked 0 ' " — thus: 10° 2' 20" — which is read ten degrees, two minutes, and twenty... | |
| Charles Davies - Geometrical drawing - 1846 - 240 pages
...circumference of a circle is used for the measurement of angles. 26. How is it divided? It is divided into 360 **equal parts called degrees, each degree is divided...and each minute into 60 equal parts called seconds.** The degrees, minutes, and seconds, are marked thus, °, ', " ; and 9° 18' 10", are read, 9 degrees,... | |
| Henry Hopwood - 1846
...English mathematicians, to be divided into 360 equal parts, called degrees; each degree is subdivided **into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.** Degrees are marked (°), minutes ('), and seconds ("). These degrees vary in length according to the... | |
| Charles Davies - Arithmetic - 1846 - 399 pages
...OF TIME. 40. 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.** For astronomical purposes, the circumference of the circle is also supposed to be divided into 12 equal... | |
| Mary Somerville - Physical sciences - 1846 - 460 pages
...NOTE 50, p. 9.— Ninety degrees. A circle is divided into 360 equal parts, or degrees ; each degree **into 60 equal parts, called minutes; and each minute into 60 equal** pans, called seconds. It is usual to write these quantities thus, 15° 16' 10", which means fifteen... | |
| James Robinson (of Boston.) - 1847
...circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree **into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.** Hence, a semicircle measures 180 degrees, and a quadrant 90 degrees. 46. The measure of an angle is... | |
| Anthony Nesbit - Plane trigonometry - 1847 - 426 pages
...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.** 40. The diameter of a circle is a right line drawn through the centre, and terminating in the circumference... | |
| |