 | Lucius D. Gould - 1853 - 234 σελίδες
...contained by the line AC and EC, is called the angle ACE, or EGA. Fig. 9. The circumference of every circle is supposed to be divided into 360 equal parts, • called degrees, each degree into 60 minutes, and each minute into 60 seconds, etc. A semicircle, therefore, contains 180 degrees,... | |
 | Thomas Kentish - 1854 - 268 σελίδες
...problems repeated at the end of the Uses of the Slide Rule. TRIGONOMETRY. THE circumference of a circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divided into 60 minutes; each minute into 60 seconds ; and so on. Degrees are marked with a small ° at the top of... | |
 | Charles Davies - 1854 - 436 σελίδες
...parts is given. 3. For the purpose of trigonometrical calculation, the circumference of the circle is supposed to be divided into 360 equal parts, called degrees ; each degree is supposed to be divided into 60 equal parts, called minutes; and each minute into 60 equal parts, called... | |
 | Robert Stuart - 1854 - 1272 σελίδες
...which all lines drawn from a certain point wiihiii it, called the centre, are equal. The circumference is supposed to be divided into 360 equal parts, called degrees, each degree is again subdivided into 60 minutes, each minute into 60 thirds, each third into 60 fourths, &c. ad infinittim.... | |
 | Charles Davies - 1854 - 446 σελίδες
...parts is given. 3. For the purpose of trigonometrical calculation, the circumference of the circle is supposed to be divided into 360 equal parts, called degrees ; each degree is supposed to be divided into 60 equal parts, called minutes; and each minute into 60 equal parts, called... | |
 | Thomas H. Palmer - 1854 - 356 σελίδες
...and longitude, and also in measuring the motions of the heavenly bodies. Every circle, whether great or small, is supposed to be divided into 360 equal parts, called degrees. A degree of a great circle of the earth contains 60 geographical miles, equal to 69 \ statute miles.... | |
 | Thomas H. Palmer - 1854 - 368 σελίδες
...and longitude, and also in measuring the motions of the heavenly bodies. Every circle, whether great or small, is supposed to be divided into 360 equal parts, called degrees. A degree of a great circle of the earth contains 60 geographical miles, equal to 69J statute miles.... | |
 | Charles Davies, William Guy Peck - 1855 - 628 σελίδες
...divided into four equal parts, each of which is called a quadrant ; each quadrant is divided into 90 equal parts, called degrees ; each degree is divided into 60 equal parts, called minutes; each minute into GO equal parts, called seconds, and so on according to the sexagesimal scale. See... | |
 | Jeremiah Day - 1855 - 344 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, e?tch degree into 60 minutes, each minute into 60 seconds, each second into 60 thirds, &c., marked... | |
 | Elias Loomis - 1855 - 192 σελίδες
...triangles; Spherical Trigonometry treats of spherical triangles. (19.) The circumference of every circle is supposed to' be divided into 360 equal parts, called degrees ; each degree into 60 minutes, and each minute into 60 seconds. Degrees, minutes, and seconds are designated by the... | |
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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. 
