| William Grier - 1836 - 344 pągines
...other two on the two sides, that which stands at the angular point is read in the middle. Thus DAE. 57. **The circumference of every circle is supposed to be...equal parts, called degrees; and each degree into 60** minutes, each minute into 60 seconds, and so on. Hence a semicircle contains 180 degrees, and a quadrant... | |
| Luke Hebert - 1836
...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 Lee Comstock - 1836 - 295 pągines
...appears to move Each of the 12 signs of the zodiac is divided (nto 30 smaller parts, called degrees; **each degree into 60 equal parts, called minutes, and each minute into** BO parts, called seconds.) The division of the zodiac into signs, is of very ancient date, each sign... | |
| Hugh Murray - 1837
...sphere, 7916 miles in 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 on the... | |
| James Thomson (LL.D.) - 1837 - 284 pągines
...is/img, while the 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,... | |
| Charles Guilford Burnham - 1837 - 256 pągines
...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 - 1838 - 80 pągines
...consist in the length of 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... | |
| Charles Davies - 1838 - 288 pągines
...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,... | |
| Benjamin Greenleaf - 1839 - 305 pągines
...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...equal parts, called degrees ; and each degree into 60** minutes, each minute into 60 seconds ; and so on. Hence a semicircle contains 180 degrees, and a quadrant,... | |
| Thomas Keith - 1839
...thus the arc ac is the 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... | |
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