 | Nathaniel Dwight - Geography - 1816 - 220 pages
...which divide it into unequal parts. Q. What are the degrees of a circle ? A. The circumference of every circle is supposed to be divided into 360 equal parts...equal parts called minutes ; and each minute into 60 seconds. Q. What is a meridian ? A. It is a great circle cutting the equator at right angle's', and... | |
 | Olinthus Gregory - Plane trigonometry - 1816 - 278 pages
...of the angle ACB. 10. The circumference of a circle is supposed to be divided, or to be divisible, into 360 equal parts, called degrees; each degree into 60 equal parts, called minutes ; each of these into 60 equal parts, called seconds ; and so on, to the minutest possible subdivisions.... | |
 | Bewick Bridge - Algebra - 1821 - 227 pages
...a given radius. 3. For the purpose of exhibiting arithmetically the magnitude of angles, the whole circumference of the circle is supposed to be divided...degrees; each degree into 60 equal parts, called minutes; each minute into 60 equal parts, called seconds; &c. &c. And since arcs are the measures of angles,... | |
 | Robert Gibson - Surveying - 1821 - 604 pages
...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 00 equal parts called seconds, and- these into thirds, fourths, &c. these parts being greater or less... | |
 | Joseph Emerson Worcester - Atlases - 1822 - 322 pages
...equal parts. These are four, the two tropics, and (he two polar circles. The circumference of every circle is supposed to be divided into 360 equal parts,...equal parts, called minutes ; and each minute into 00 equal parts, called seconds. They are marked thus, 23° 28' 16" ; i- e. 33 degrees, 28 minute!",... | |
 | Rev. John Allen - Astronomy - 1822 - 516 pages
...tailed acute.* * Mathematicians have supposed the whole circumference of a circle to be divided in 360 equal parts, called degrees, each degree into...called minutes and each minute into 60 equal parts, cal:ed seconds, &c. and a circle being described iron) the vertex of an angle, as a centre, an angle... | |
 | Sidney Edwards Morse - Geography - 1822 - 706 pages
...drawn through the centre from one side of the circumference to the other. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 minutes ; each minute into 60 seconds. An arc of a circle is part of its circumference. All angles... | |
 | Sidney Edwards Morse - Atlases - 1822 - 712 pages
...drawn through the centre from one side of the circumference to the other. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 minutes ; each minute into GO seconds. An arc of a circle is part of its circumference. All angles... | |
 | Jeremiah Day - Geometry - 1824 - 440 pages
...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, each degree into 60 minutes, each minute into 60 seconds, each second into 60 thirds, &c. marked with the characters °,... | |
 | Thomas Keith - Navigation - 1826 - 442 pages
...of the angle авс 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...degrees, each degree into 60 equal parts called minutes, each minute into 60 equal parts called seconds. The angles are measured by the number of degrees cut... | |
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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, each minute into 60 equal parts called seconds. 
