 | Hugh Murray - 1837 - 612 σελίδες
...diameter, and consequently nearly 24,870 miles in circumference. In geometry, the circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each of these into 60 equal parts, called minutes, and so on. A degree, therefore, of any circle... | |
 | James Thomson (LL.D.) - 1837 - 296 σελίδες
...months 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,... | |
 | Thomas Holliday - 1838 - 404 σελίδες
...the lines which form it, but in their opening or inclination to each other. 2. 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 again into 60 equal parts, called... | |
 | Thomas Keith - 1839 - 498 σελίδες
...measure of the angle aBc, and the arc DE is the measure of the angle ABC. (56) 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. The... | |
 | Benjamin Greenleaf - 1839 - 356 σελίδες
...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 a semicircle contains... | |
 | W. F. Walker - 1841 - 246 σελίδες
...C. 0 1— 60. g. 1 = 60 = 3600. C. 1 = 30 = 1800 = 108000. 1 = 12 — 360 = 21600 = 1296000. . This measure is used in estimating latitude and longitude,...also in measuring the motions of the heavenly bodies. XIII. TIME. The denominations of Time are the year, the month, the week, the day, the hour, the minute,... | |
 | Benjamin Greenleaf - 1841 - 334 σελίδες
...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 - 1841 - 324 σελίδες
...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 - 1842 - 320 σελίδες
...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 - 1842 - 1114 σελίδες
...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.... | |
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The circumference of every circle is supposed to be divided into 360 equal parts, called degrees... 
