| William Smyth - Plane trigonometry - 1834 - 72 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 parts called thirds, &c.... | |
| Francis Joseph Grund - Geometry, Plane - 1834 - 190 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 degree into 60 equal parts, called minutes** ; each minute, again, into 60 equal parts, called seconds, &c. 16. The magnitude of an angle does not... | |
| Olinthus Gregory - Mathematics - 1834 - 427 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.... | |
| Mary Somerville - Science - 1835 - 493 pages
...axis of the ellipse. NOTE 49. p. 12. Ninety degrees. A circle is divided into 3fiO equal parts, or **degrees; each degree into 60 equal parts, called minutes...and each minute into 60 equal parts, called seconds.** It is usual to write these quantities thus, 15° 16' 10'', which means fifteen degrees, sixteen minutes,... | |
| Abel Flint, George Gillet - Geometry - 1835 - 334 pages
...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** ; and these into thirds, &c. NOTE. Since all circles are divided into the same number of degrees, a... | |
| Euclid, John Davidson - Mathematics - 1835 - 513 pages
...II. The circumference of a 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,** &c. A degree is marked thus, ° ; a minute thus, ' ; a second thus,"; and so on: for example, 57°... | |
| John Lee Comstock - Physics - 1835 - 286 pages
...another constellation, and neai the star a. 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** GO parts, called seconds. The division of the zodiac into signs, is of very ancient date, each sign... | |
| John Lee Comstock - Physics - 1835 - 295 pages
...another constellation, and neai the star a. 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** (50 parts, called seconds. The division of the zodiac into signs, is of very ancient date, each sign... | |
| Thomas Spofford - Astronomy - 1835 - 72 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... | |
| Adrien Marie Legendre - Geometry - 1836 - 359 pages
...CIRCUMFERENCE. I. For the purposes of trigonometrical calculation, the cir cumference of the circle **is divided into 360 equal parts, called degrees ;...each minute into 60 equal parts, called seconds. The** semicircumference, or the measure of two right angles, contains 180 degrees ; the quarter of the circumference,... | |
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