 | 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... | |
 | 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.... | |
 | 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 is therefore... | |
 | 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... | |
 | 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...360 equal parts, called degrees; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called secotuls. They are marked... | |
 | 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...360 equal parts, called degrees; each degree into 60 equal parts, called minutes; each minute into 60 equal parts, called seconds, &c. Degrees, minutes... | |
 | Charles Davies - Arithmetic - 1844 - 666 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. 60 seconds " make 1 minute, marked '. 60 minutes - - 1 degree, - - °, 30 degrees - - 1 sign, - - -... | |
 | Robert Griffith Hatfield - Architecture - 1845 - 326 pages
...abd, (see note to Art. 27,) then each of the two angles is called a right angle. 131. — Definition. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; hence a semi-circle contains 180 degrees, a quadrant 90, &c. o Fig. 96. 132. — Definition. The... | |
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The circumference of every circle is supposed to be divided into 360 equal parts, called degrees... 
