 | Paul Hoste - 1769 - 294 pages
...call'd the chord, or fubtendent of the arch. The whole circumference of every circle isfuppofed to be divided into 360 degrees, each degree into 60 minutes, and each minute inta 60 feconds, fcfr. 2. What 2. What an arch wants of 90 degrees, rs callM its complement; and its... | |
 | John Lathrop - 1812 - 218 pages
...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 pages
...and is 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 pages
...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 pages
...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 - 140 pages
...confusion 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 pages
...portions, and 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... | |
 | Nicholas Tillinghast - 1844 - 110 pages
...AND ARCS. 77 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 - 1844 - 298 pages
...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.... | |
 | Charles Haynes Haswell - 1851 - 346 pages
...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... | |
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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 characters °, ', ". Thus 23° 14' 35"... 
