 | Jedidiah Morse - 1814 - 378 σελίδες
...celestial sphere, are supposed to be extended to the earth, and marked on its surface. Each circle is divided into 360 equal parts, called degrees ; each degree is divided Into 60 minutes, and each minute into 60 seconds. The circles, supposed by geographers to be described on the... | |
 | Robert Gibson - 1814 - 558 σελίδες
...celestial Equator or Equinoctial. The Equator, as well as all other great circles of the sphere, is divided into 360 equal parts, called degrees ; each...divided into 60 equal parts, called minutes ,• and the sexagesimal division is continued. NOTE. The ancients having no instruments by Which they could... | |
 | Jedidiah Morse - 1814 - 382 σελίδες
...celeftial fphere, are fuppofed to be extended to the earth, and marked on its farface. Each circle is divided into 360 equal parts, called degrees ; each degree is divided into 60 minutes, and each minute into (tofeconds. The circles fuppofed by geographers to be defcribed on the... | |
 | Jedidiah Morse - 1814 - 696 σελίδες
...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... | |
 | John Gummere - 1814 - 398 σελίδες
...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... | |
 | Jeremiah Day - 1815 - 388 σελίδες
...purpose of 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... | |
 | Jeremiah Day - 1815 - 172 σελίδες
...purpose of 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... | |
 | Nathaniel Dwight - 1816 - 220 σελίδες
...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... | |
 | Thomas Keith - 1817 - 306 σελίδες
...angle » BE, and the arc G n is the measure of the angle ABC. 14. 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 seconds. The angles... | |
 | Jedidiah Morse - 1818 - 384 σελίδες
...Celestial Sphere. 21 supposed to be extended to the earth, and marked on its surface. Each circle is divided into 360 equal parts, called degrees ; each degree is divided into 60 minutet, and each minute into GO seconds. % If The circles, supposed by Geographers to be described... | |
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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 seconds. 
