 | John Ewing - 1809 - 672 sider
...circle, whether large or small, is supposed to be divided into 360 equal parts, which are called degrees, each degree into 60 equal parts called minutes, and each minute into 60 seconds, and so on in a sixagesimal division as far as you please. If the earth be supposed to turn... | |
 | James Ferguson - 1809 - 574 sider
...suppose to be divided into 12 equal parts, called signs ; each sign into 30 equal parts, called degrees; each degree into 60 equal parts, called minutes; and each minute into 60 into 60 equal parts, called seconds : so that a second Plate I. is the 60th part of a minute ; a minute... | |
 | Euclid - 1810 - 554 sider
...meeting BA, BC in A, C; the arch AC is called the measure of the angle ABC. II. The circumference of a circle is supposed to be divided into 360 equal parts...and each minute into 60 equal parts called seconds, &c. And as many degrees, minutes, seconds, &c. as are contained in any arch, of so many degrees, minutes,... | |
 | John Dougall - 1810 - 684 sider
...other four watches. In modern Europe the day is divided into 2* equal parts called hours, each hour into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. It has been found by experiment at London, in a spot elevated 113 feet above the level of the sea,... | |
 | Thomas Keith - 1810 - 478 sider
...the measure of the angle aBC and the arc DE is the measure of the angle ABC. (H) The circumference of every circle is supposed to be divided into 360 equal parts called degrees, each degree into 60 equal parts called minutes, each minute into 60 equal parts called seconds. The... | |
 | Robert Gibson - 1811 - 580 sider
...parts, called semicircles ; and is double the radius, as AB or DE. fig. 8. m *!6. The circumference of every circle is supposed to be divided into 360...called minutes, and each minute into 60 equal parts caled seconds, and these into thirds, fourths, &c. these parts being greater or less as the radius... | |
 | Thomas Keith - 1811 - 388 sider
...ascention, for the beginning of the year 1804, was 13° 14' 43" and its declination 80° "15' 44" north. $ Every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts called minutes ; each minute into 60 equal parts called seconds,... | |
 | Edward Augustus Kendall - 1811 - 462 sider
...measured by the arcs of a circle, contained between the two legs, having the angular point for its centre. Ev.ery circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parti, called minutes $ each minute into' 60 equal parts, called seconds.... | |
 | Adam Walker - 1812 - 92 sider
...language of geography 59° 56'N. and 30° 24'E.; for every circle, large or small, real or imaginary, is supposed to be divided into 360 equal parts, called degrees ; and every degree into 60 parts, called minutes; and every minute into 60 parts, called seconds, marked... | |
 | Caleb Alexander - 1813 - 152 sider
...The circumference of every circle, is supposed tobe divided into 360 equal parts, called degree»; and each degree, into 60 equal parts, called minutes;...each minute, into 60 equal parts, called seconds, and these into thirds, fourtUs, &c. 14. Parallel lines are equidistant from each other. 15 A figure,... | |
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The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c. 
