 | John Gummere - Surveying - 1814 - 398 pages
...given, the others are determined. 2. The periphery of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minnte into 60 equal parts, called seconds, &c. 3. The measure of an angle is the arc of a circle,... | |
 | Euclides - 1816 - 588 pages
...II. The circumference of a circle is supposed to be divided fnto 360 equal parts called degrees, and each degree into 60 equal parts called minutes, and...each minute into 60 equal parts called seconds, &c. And as many degrees, minutes, seconds, &c. as are contained in any arc h, of so many degrees, minutes,... | |
 | Nathaniel Dwight - Geography - 1816 - 220 pages
...are the degrees of a circle ? A. The circumference of every circle is supposed to be divided into 360 equal parts called degrees ; each degree into 60 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
...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.... | |
 | Thomas Keith - 1817 - 306 pages
...measure of the angle ABC. 14. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60...and each minute into 60 equal parts, called seconds. The angles are measured by the number of degrees cut off from the circle, by the lines which form the... | |
 | John Gummere - Plane trigonometry - 1817 - 392 pages
...given, the others are determined. 2. The periphery of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60...and each minute into 60 equal parts, called seconds, 8cc. 3. The measure of an angle is the arc of a circle, con-, tuined between the two lines that form... | |
 | Robert Gibson - Surveying - 1818 - 502 pages
...The periphery of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ;...minute, into 60 equal parts, called seconds ; &c. 3. Any part of the periphery, is calledlan arch ; and is the measure of the angle at the centre, which... | |
 | Miles Bland - Geometry - 1821 - 898 pages
...Till lately, Geometers almost unanimously agreed to divide the circumference of the circle into Збо equal parts called Degrees ; each degree into 60 equal...in consequence of the great number of divisors of Збо and 60 ; but it is in reality subject to inconvenience from complicated numbers, and tediousness... | |
 | Thomas Simpson - Algebra - 1821 - 426 pages
...The periphery 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, or second minutes, <Jc. Any part of the periphery is called an arch, and is measured by the number... | |
 | Bewick Bridge - Algebra - 1821 - 648 pages
...arithmetically the magnitude of angles, the whole circumference of the 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; &c. &c. And since arcs are the measures of angles,... | |
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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 ; and each minute into 60 equal parts, called seconds. 
