 | John Lathrop - 1812 - 218 σελίδες
...36O equal parts, called degrees. — [Fig. 1.] 48. Every circle is supposed to be divided into 3GO degrees ; each degree into 60 minutes, and each minute into 60 seconds. 49. A degree of a great circle in the heavens is a space nearly equal to twice the apparent diameter... | |
 | Augustus De Morgan - 1836 - 144 σελίδες
...out of the use of the words minute and second in two different senses. The circle is divided into 360 degrees, each degree into 60 minutes, and each minute into 60 seconds. The latter two are called minutes and seconds of space — it should rather be of angle. The division... | |
 | Scottish school-book assoc - 1840 - 132 σελίδες
...equal to one another. Small circles divide it into unequal portions. Every circle is divided into 360 degrees, each degree into 60 minutes, and each minute into 60 seconds. The Equator is a great circle passing round the middle of the earth, at an equal distance from both... | |
 | Charles Davies - 1847 - 368 σελίδες
...Every circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divided into 60 minutes, and each minute into 60 seconds. TABLE. 60 seconds " make 1 minute, marked '. 60 minutes 1 degree, - - °. 30 degrees - - 1 sign, - - - s. 12 signs or... | |
 | Charles Davies - 1847 - 368 σελίδες
...Every circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divided into 60 minutes, and each minute into 60 seconds. TABLE. 60 seconds " make 1 minute, marked '. 60 minutes 1 degree, - - °. 30 degrees - - 1 sign, - - s. 12 signs or 360°... | |
 | Charles Haynes Haswell - 1851 - 346 σελίδες
...the arc. i The . Circumference of every circle is supposed to be divided into 360 equal parts .led Degrees ; each degree into 60 Minutes, and each minute into 60 Seconds, and on. The Complement of an angle is what remains after subtracting the angle from 90 . Supplement... | |
 | John Russell Hind - 1852 - 76 σελίδες
...at the present time, except for certain astronomical tables. The circumference is divided into 360 degrees, each degree into 60 minutes, and each minute into 60 seconds. Sextans. — One of the constellations introduced by Hevelius. Sextant. — An instrument for measuring... | |
 | Henry Kiddle - 1854 - 154 σελίδες
...the circumference in one point. The circumference of every circle is supposed to be divided into 360 degrees, each degree into 60 minutes, and each minute into 60 seconds. A semicircle is one half of a circle, and contains 180 degrees. What is a triangle ? What is a right-angled... | |
 | Charles Davies - 1858 - 346 σελίδες
...every circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divirled into 60 minutes, and each minute into 60 seconds. TABLE. 60 seconds" make 1 minute, marked '. 60 minutes • 1 degree, °. 30 degrees - 1 sign, s. 12 signs or 360° 1 circle,... | |
 | Robert Potts - 1860 - 380 σελίδες
...of the circumference of a circle may be found. If the right angle be considered as divided into 90 degrees, each degree into 60 minutes, and each minute into 60 seconds, and so on, according to the sexagesimal division of a degree ; by the aid of the first corollary to... | |
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If the right angle be considered as divided into 90 degrees, each degree into 60 minutes, and each minute into 60... 
