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. An Elementary Geometry and Trigonometry - Page 11by William Frothingham Bradbury - 1873 - 238 pagesFull view - About this book
| Joseph Allen - America - 1832 - 128 pages
...360 equal parts, called degrees, and each degree contains about 09 A miles. Each degree is divided **into 60 equal parts, called minutes, and each minute into 60 equal parts, called seconds.** Questions for Review. How many degrees are there in the circumference of the earth ? How many miles... | |
| William Smyth - Plane trigonometry - 1834 - 102 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 - 206 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 - 480 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 - Astronomy - 1835 - 532 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 - Geometry - 1835 - 366 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 - 1835 - 540 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 - 308 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 - 1835 - 308 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 - 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... | |
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