 The circumference of a 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 characters °, ', ". Thus 23° 14' 35" is read...  Logarithmic and Trigonometric Tables - Pàgina 167editat per - 1911 - 114 pàginesVisualització completa - Sobre aquest llibre
 | John Lathrop - 1812 - 218 pàgines
...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... | |
 | John Lathrop - 1821 - 206 pàgines
...divided into 360 equal parts, called degrees.—[Fig. 1.] 48. Every circle is supposed to be divided into 360 degrees; each degree into 60 minutes, and each minute into GO seconds. 49. A degree of a great circle in the heavens is a space nearly equal to twice the apparent... | |
 | James Charlton - 1829 - 250 pàgines
...withitt it, called the centre. ISsery cjrxje is. supppsed Ip b^djyided into 360 equai parts, called degrees, each degree into 60 minutes, and each minute into 60 seconds. Degrees are marked with a small cipher, minutes with -one dash, and' seconds' With two dashes. Thus,... | |
 | James Hayward - 1829 - 218 pàgines
...For this purpose, the ancients divided the circumference of the circle into 360 equal parts, called degrees ; each degree into 60 minutes ; and each minute into 60 seconds. And the magnitude of an angle they expressed by the degrees, (°) minutes (') and seconds (",) which... | |
 | Augustus De Morgan - 1836 - 144 pàgines
...arising 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 pàgines
...are all 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 Haynes Haswell - 1844 - 298 pàgines
...of the arc. The Circumference of everjr circle is supposed to be divided into 360 cqnal parts called Degrees } each degree into 60 Minutes, and each minute into 60 Seconds, and so on. The Complement of an angle is what remains after subtracting- the angle from 90 degrees.... | |
 | Nicholas Tillinghast - 1844 - 108 pàgines
...arcs. measure of the angle at the centre which it subtends. The circumference of the circle is divided into 360 degrees, each degree into 60 minutes, and each minute into sixty seconds ; and we speak of an angle of so many degrees, &c., meaning an angle at the centre subtended... | |
 | Charles Haynes Haswell - 1851 - 346 pàgines
...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 pàgines
...employed 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... | |
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