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
| Robert Gibson - Surveying - 1811 - 592 pages
...The 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** caled seconds, and these into thirds, fourths, &c. these parts being greater or less as the radius... | |
| Francis Nichols - Plane trigonometry - 1811 - 128 pages
...other circle, subtending the same angle ABC. 5. COR. 4. Hence, if a circle of any radius whatever be **divided into 360 equal parts, called degrees, each degree into 60 equal parts, called minutes;** each minute into 6O equal parts, called seconds, &c., the number of degrees, minutes, and seconds,... | |
| Thomas Keith - Astronomy - 1811 - 386 pages
...year 1804, was 13° 14' 43" and its declination 80° "15' 44" north. $ Every circle is supposed to be **divided into 360 equal parts, called degrees ; each degree into 60 equal parts called minutes** ; each minute into 60 equal parts called seconds, &c. ; a degree is, therefore, only a relative idea,... | |
| Edward Augustus Kendall - 1811 - 460 pages
...contained between the two legs, having the angular point for its centre. Ev.ery circle is supposed to be **divided into 360 equal parts, called degrees ; each degree into 60 equal** parti, called minutes $ each minute into' 60 equal parts, called seconds. " An angle is said to be... | |
| Caleb Alexander - Arithmetic - 1813 - 144 pages
...circumference of every circle, is supposed tobe divided into 360 equal parts, called degree»; and **each degree, into 60 equal parts, called minutes;...each minute, into 60 equal parts, called seconds,** and these into thirds, fourtUs, &c. 14. Parallel lines are equidistant from each other. 15 A figure,... | |
| John Lee Comstock - Physics - 1813 - 442 pages
...constellation, and near trfB star a. 762. 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 60** parts, called seconds. The division of the zodiac into signs, is of very ancient date, each sign having... | |
| Charles Butler - Mathematics - 1814 - 528 pages
...angle. It is usual to divide the whole circumference into 360 equal parts called degrees, to subdivide **each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds,** &c. wherefore, if an angle at the centre be subtended by an arc which consists of suppose 30 degrees,... | |
| Robert Gibson - Surveying - 1814 - 556 pages
...The 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 tiiese into thirds, fourths, &c. these parts being greater or less as the radius is.17. A chord... | |
| John Gummere - Surveying - 1814 - 390 pages
...three angles, are given, the others are determined. 2. The periphery of every circle is supposed to be **divided into 360 equal parts, called degrees ; each...degree into 60 equal parts, called minutes ; and each** minnte into 60 equal parts, called seconds, &c. 3. The measure of an angle is the arc of a circle,... | |
| John Dougall - Encyclopedias and dictionaries - 1815 - 516 pages
...-complement, or shortrv, the co-sine of the ar<j В S. The circumference of the globe of the earth being **divided into 360 equal parts called degrees, each degree into 60 equal parts called** nantītes, each minute into OU equal part« called seconds, each second into (Hi equal parts called... | |
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