 | Jeremiah Day - Geometry - 1839 - 434 pages
...measuring the 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... | |
 | Benjamin Greenleaf - Arithmetic - 1841 - 334 pages
...middle. Thus, the angle contained by the lines B, A and A, D is called the angle B, A, D, or D, A, B. 56. 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 u semicircle contains... | |
 | Charles Guilford Burnham - Arithmetic - 1841 - 324 pages
...passing through the centre ; and it divides the circle into two equal parts, called semi-circles. 14. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees; and each degree into 0O equal parts, called minutes; and each minute into 60 equal parts, called seconds;... | |
 | William Grier - Mechanical engineering - 1842 - 320 pages
...on the two sides, 5 AO 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... | |
 | Joseph Gwilt - Architects - 1842 - 1114 pages
...abstract relations which connect it with geodisic operations. 1 034. We have already observed that every circle is supposed to be divided into 360 equal parts, called degrees, and that each degree is subdivided into 60 minutes, these minutes each into 6O seconds, and so on.... | |
 | Samuel Maunder - Encyclopedias and dictionaries - 1843 - 914 pages
...compasses, fixing one foot in the centre and turning the other round to trace out the circumference. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees and marked ° ; and each degree into 60 mi nutes, marked'. The word Circle is also used to describe... | |
 | 1844 - 636 pages
...The brazen meridian is the circle in which the anifi- L cial globe turns, divided into 360 degree*. Every circle is supposed to be divided into 360 equal parts, called degrees, each degree into 60 equal parts, called minute*, \ each minute into 60 equal parts, called seconds, &c. ; a degree... | |
 | Charles DAVIES (LL.D.) - Arithmetic - 1843 - 348 pages
...used in estimating latitude and longitude, and also in measuring the motions of the heavenly bodies. Every circle is supposed to be divided into 360 equal parts, called degrees. TABLE. 60 seconds " make 1 minute, marked '. 60 minutes - - 1 degree, - - °. 30 degrees - - 1 sign,... | |
 | Joseph Emerson Worcester - Classical geography - 1844 - 356 pages
...globe. One is the north, and the other the south pole ; and they are each 90 degrees from the equator. The circumference of every circle is supposed to be...into 360 equal parts, called degrees; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called secotuls. They are... | |
 | Enoch Lewis - Conic sections - 1844 - 234 pages
...What an arc lacks of a semicircle, is called its supplement. Thus BHD is the supplement of AB. 10. The circumference of every circle is supposed to be...into 360 equal parts, called degrees; each degree into 60 equal parts, called minutes; each minute into 60 equal parts, called seconds, &c. Degrees,... | |
| |
The circumference of every circle is supposed to be divided into 360 equal parts, called degrees... 
