 | William Grier - Mechanical engineering - 1842 - 320 pages
...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 180 degrees,... | |
 | 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. Hence... | |
 | Charles DAVIES (LL.D.) - Arithmetic - 1843 - 348 pages
...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,... | |
 | Samuel Maunder - Encyclopedias and dictionaries - 1843 - 914 pages
...a circle, is a sector having a quarter of the circumference for its arc. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees; each deip-ee into 60 minutes; and each minute into 60 seconds -. hence a semicircle contains ISO degrees,... | |
 | 1844 - 636 pages
...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,... | |
 | Charles Davies - Arithmetic - 1844 - 666 pages
...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, - - -... | |
 | Joseph Emerson Worcester - Classical geography - 1844 - 362 pages
...unequal parts. These are four, the two tropics, and the two polar circles. 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.... | |
 | Enoch Lewis - Conic sections - 1844 - 234 pages
...semicircle, is called its supplement. Thus BHD is the supplement of AB. 10. The circumference of 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.... | |
 | Nathan Scholfield - 1845 - 894 pages
...for unity, the surface of the polygon will be measured oy ANALYTICAL PLANE TRIGONOMETRY. CHAPTER I. PLANE TRIGONOMETRY is the science which treats of...degrees is divided into 60 equal parts called minutes, and each minute into CO equal parts called seconds ; and so on, to thirds, fourths, &c. These divisions... | |
 | Nathan Scholfield - Conic sections - 1845 - 542 pages
...centre, may be regarded as the measure of the angle or inclination of those lines, and therefore the _ arc of the circumference may be regarded as the measure...degrees is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds ; and so on, to thirds, fourths, &c. These divisions... | |
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The circumference of every circle is supposed to be divided into 360 equal parts, called degrees... 
