| Luke Hebert - Industrial arts - 1836 - 814 pages
...two radii and an arc, as a с b, Fig. T. The circumference of every circle, whether great or small, is supposed to be divided into 360 equal parts, called degrees; and every degree into 60 parts, called minutes ; and every minute into 60 seconds. To measure the inclination... | |
| John Playfair - Geometry - 1836 - 148 pages
...C ; the arc AC may be called the measure of the angle ABC, II. The circumference of a circle may be supposed to be divided into 360 equal parts called degrees ; and each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds, &c.... | |
| James Thomson (LL.D.) - Arithmetic - 1837 - 296 pages
...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,... | |
| Charles Guilford Burnham - Arithmetic - 1837 - 266 pages
...ga\\on,galA quarters, 1 chaldron,c/(. XIV. Circular Measure* * " Every circle, without regard to its size, is supposed to be divided into 360 equal parts, called degrees, and these again to be subdivided into minutes and seconds; so that the absolute quantity expressed by any... | |
| Thomas Holliday - Surveying - 1838 - 404 pages
...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... | |
| Charles Davies - Arithmetic - 1838 - 292 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,... | |
| Benjamin Greenleaf - Arithmetic - 1839 - 356 pages
...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 180 degrees,... | |
| Thomas Keith - 1839 - 498 pages
...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... | |
| Charles Guilford Burnham - Arithmetic - 1841 - 324 pages
...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; and... | |
| Benjamin Greenleaf - Arithmetic - 1841 - 334 pages
...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 130 degrees,... | |
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