| Charles Davies - Surveying - 1830 - 318 pages
...25. For the purposes of trigonometrical calculations, the circumference of the 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. 26. As the circumference of a circle may be... | |
| Adrien Marie Legendre - Geometry - 1830 - 344 pages
...of trigonometrical calculations, the circumference of the circle is conceived to be divided into 36O **equal parts, called degrees ; each degree into 60 equal parts, called minutes** ; and each minute into 60 equal parts, called seconds. The semicircumference, or the measure of two... | |
| Ira Wanzer - Arithmetic - 1831 - 408 pages
...is used by Astronomers, Navigators, &c. Note 2. — The circumference of every circle is supposed to **be divided into 360 equal parts, called degrees; each...60 equal parts, called minutes ; each minute into** 60 seconds, and each second into 60 thirds, &c. 16. Of Particulars. 12 Particular things make 1 Dozen,... | |
| 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 °,... | |
| William Smyth - Plane trigonometry - 1834 - 94 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...into 60 equal parts called minutes, each minute into** 60 equal parts called seconds, each second into 60 equal parts called thirds, &c. The character used... | |
| Francis Joseph Grund - Geometry, Plane - 1834 - 204 pages
...arcs of circles, described with any radius between their legs. The circumference is, for this purpose, **divided into 360 equal parts, called degrees; each...into 60 equal parts, called minutes ; each minute,** again, into 60 equal parts, called seconds, &c. 16. The magnitude of an angle does not depend on the... | |
| Olinthus Gregory - Mathematics - 1834 - 484 pages
...(See the next figure.) 3. The circumference of a circle is supposed to be divided or to be divisible **into 360 equal parts, called degrees; each degree into 60 equal parts, called minutes; each** of these into 60 equal parts, called seconds ; and so on to the minutest possible subdivisions. Of... | |
| Thomas Spofford - Almanacs, American - 1835 - 84 pages
...from a point within the circle, called the centre. The circumference of every circle is supposed to **be 'divided into 360 equal parts called degrees ; each degree into 60 equal** parls called minutes, and each minute into 60 equal parts called seconds. Colurea ; those two meridians... | |
| Mathematics - 1835 - 684 pages
...the circumference of the circle Л PB (fig. Art. 3) completed, and divided into 360 equal portions **called degrees* ; each degree into 60 equal parts called minutes; each minute into** 60 equal parts called seconds ; &c. The magnitude of the an^le А С Р is expressed by the number... | |
| Adrien Marie Legendre - Geometry - 1836 - 394 pages
...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, or the measure of two... | |
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