 | Thomas Keith - 1811 - 388 pàgines
...for the beginning of the year 1804, was 13° 14' 43" and its declination 80° "15' 44" north. $ 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. ; a degree... | |
 | Robert Gibson - 1811 - 580 pàgines
...called semicircles ; and is double the radius, as AB or DE. fig. 8. m *!6. The circumference of every circle is 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 caled seconds,... | |
 | Friedrich Christian Accum - 1813 - 488 pàgines
...the circumference of a circle is the standard of comparison. This circle, of whatever size it may be, is supposed to be divided into 360 equal parts, called degrees ; each degree is again subdivided into 60 equal parts, called minutes, and every minute is subdivided into 60 seconds... | |
 | John Gummere - 1814 - 398 pàgines
...triangle, except the three angles, are given, the others are determined. 2. The periphery of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minnte into 60 equal parts, called seconds, &c. 3. The... | |
 | Jedidiah Morse - 1814 - 696 pàgines
...two radii, or the longest straight line, that can be drawn in a circle. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 minutes ; each minute into 60 seconds. An arc of a circle is the measure of an angle. Thus... | |
 | Robert Gibson - 1814 - 558 pàgines
...parts, called semicircles; and isdoublethe radius, as AB or DE. fig. 8. 16. The circumference of every circle is 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,... | |
 | Jeremiah Day - 1815 - 172 pàgines
...measuring the latter, a circle is introduced. The periphery of every circle, whether great or small, is supposed to be divided into 360 equal parts called degrees, each degree into 60 minutes, each minute into 60 second?. each second into 60 thirds, &c. marked with flie characters... | |
 | Jeremiah Day - 1815 - 388 pàgines
...measuring the latter, a circle is introduced. The periphery of every circle, whether great or small, is supposed to be divided into 360 equal parts called degrees, each degree into 60 minutes, each mintite into 60 seconds? each second into 60 thirds, fkc. marked with the characters... | |
 | Nathaniel Dwight - 1816 - 220 pàgines
...which divide it into unequal parts. Q. What are the degrees of a circle ? A. 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 seconds. Q. What is a meridian ? A. It... | |
 | John Bonnycastle - 1816 - 490 pàgines
...equator, we are enabled to judge of the situation of the place with respect to its latitude. Every circle is supposed to be divided into 360 equal parts, called degrees, and every degree into sixty equal parts, called minutes; so that, from these considerations, you will... | |
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The circumference of every circle is supposed to be divided into 360 equal parts, called degrees... 
