 | Euclid - 1835 - 540 pages
...described, meeting BA and BC, in A and C ; the arch AC is called the measure of the angle ABC. 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,... | |
 | Francis Lieber, Edward Wigglesworth - Encyclopedias and dictionaries - 1835 - 630 pages
...brazen meridian is the circle in which the artificial globe turns, divided into 360 degrees. Every circle is supposed to be divided into 360 equal parts, called degrees, each degree into CO equal ports, called minutes, each minute into 60 equal parts, called seconds, Sic. ; a degree is... | |
 | Abel Flint - Geometry - 1835 - 366 pages
...circle into two equal parts, calle. .emicircles ; as AB or DE. Fig. 5. 14. The , jmference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minute*; and each minute into 60 equal parts, called... | |
 | William Grier - Mechanical engineering - 1836 - 384 pages
...that which stands at the angular point is read in the middle. Thus DAE. 57. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees; and each degree into 60 minutes, each minute into 60 seconds, and so on. Hence a semicircle contains... | |
 | Augustus De Morgan - Astronomy - 1836 - 144 pages
...out of the use of the words minute and second in two different senses. The circle is divided into 360 degrees, each degree into 60 minutes, and each minute into 60 seconds. The latter two are called minutes and seconds of space — it should rather be of angle. The division... | |
 | James Thomson (LL.D.) - Arithmetic - 1837 - 296 pages
...after it follow the rule. r 48 TABLES. TABLE OF THE DIVISION OF THE CIRCLE. The circumference of every circle is supposed 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.... | |
 | Luther Ainsworth - Arithmetic - 1837 - 306 pages
...many equal parts is every circle supposed to be divided ? A. Every circle, whether great or small, is supposed to be divided into 360 equal parts, called degrees. Each degree is also subdivided into 60 minutes, and each minute into 60 second!*. 245 MENSURATION OF SUPERFICIES.... | |
 | Mrs. L. H. Tyler - Astronomy - 1837 - 302 pages
...of the plane of a circle. (21.) DBF. 4. Every circle, from the smallest to the largest, is conceived 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. These divisions are... | |
 | Benjamin Peirce - Geometry - 1837 - 216 pages
...Second, &c. ; Quadrant. 101. Definitions. In order to compare together different arcs and angles, every circumference of a circle is supposed to be divided into 360 equal arcs called degrees, and marked thus (°). For instance, 60° is read 60 degrees. Each degree is divided... | |
 | Thomas Holliday - Surveying - 1838 - 404 pages
...the circumference, as fig. 16, A—C. 4. The diameter is the greatest straight line in a circle. 5. The circumference of a circle is supposed to be divided into 360 equal parts called degrees. The face of the theodolite, compass, circumferentor, and protractor, are of the same figure as the... | |
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The circumference of every circle is supposed to be divided into 360 equal parts, • called degrees, each degree into 60 minutes, and each minute into 60 seconds, etc. 
