 | Enoch Lewis - 1844 - عدد الصفحات: 234
...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 divided into 360 equal parts, called degrees; each degree into 60 equal parts, called minutes; each minute into 60 equal parts, called seconds, &c.... | |
 | Joseph Emerson Worcester - 1844 - عدد الصفحات: 356
...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 divided into 360 equal parts, called degrees; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called secotuls.... | |
 | Charles Davies - 1844 - عدد الصفحات: 666
...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 - 1845 - عدد الصفحات: 326
...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... | |
 | Nathan Scholfield - 1845 - عدد الصفحات: 894
...circumference may be regarded as the measure of angular magnitude. For this purpose the circumference of the circle is supposed to be divided into 360 equal parts, called degrees, and each of those degrees is divided into 60 equal parts called minutes, and each minute into CO equal parts... | |
 | Nathan Scholfield - 1845 - عدد الصفحات: 542
...circumference may be regarded as the measure of angular magnitude. For this purpose the circumference of the circle is supposed to be divided into 360 equal parts, called degrees, and each of those degrees is divided into 60 equal parts called minutes, and each minute into 60 equal parts... | |
 | Nathan Scholfield - 1845 - عدد الصفحات: 506
...circumference may be regarded as the measure of angular magnitude. For this purpose the circumference of the circle is supposed to be divided into. 360 equal parts, called degrees, and each of those degrees is divided into 60 equal parts called minutes, find each minute into 60 equal parts... | |
 | Horatio Nelson Robinson - 1845 - عدد الصفحات: 310
...used in calculating 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, s. 12 signs,... | |
 | Charles Davies - 1846 - عدد الصفحات: 370
...leaving 236, the number of days required ; and so of others. DIVISION OF THE CIRCLE MEASURE OF TIME. 40. 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.... | |
 | Frederic A. Adams - 1846 - عدد الصفحات: 230
...there are in 360 gals. ? MEASURE OF THE CIRCLE. Every circle is supposed to have its circumference divided into 360 equal parts, called degrees ; and each degree into 60 parts, called minutes ; and each minute into 60 parts, called seconds. Whether the circle is great... | |
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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. 
