 | Euclides - 1816 - 588 pages
...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,... | |
 | John Gummere - Plane trigonometry - 1817 - 392 pages
...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 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... | |
 | Thomas Keith - 1817 - 306 pages
...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. The angles are measured by the number of degrees cut off from the circle, by the lines which form the... | |
 | William Philipps - 1817 - 292 pages
...the twelve parts of the Zodiac will contain 30 degrees of the circle ; each degree is divided into 60 minutes, and each minute into 60 equal parts called seconds, and so on. The Zodiac takes in a band or belt of stars 1 6 degrees broad, (8 degrees broad on each side of the... | |
 | Robert Gibson - Surveying - 1818 - 502 pages
...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 ; &c. 3. Any part of the periphery, is calledlan arch ; and is the measure of the angle at the centre,... | |
 | Miles Bland - Euclid's Elements - 1819 - 444 pages
...agreed to divide the circumference of the circle into 36o equal parts called Degrees ; each degree into 60 equal parts called Minutes ; and each minute into 60 equal parts called Seconds, &c. This method appeared to the Greek Geometers to afford some facilities for calculations, in consequence... | |
 | Miles Bland - Euclid's Elements - 1819 - 442 pages
...agreed to divide the circumference of the circle into 36o equal parts called Degrees ; each degree into 60 equal parts called Minutes; and each minute into 60 equal parts called Seconds, &c. This method appeared to the Greek Geometers to afford some facilities for calculations, in consequence... | |
 | Geography - 1820 - 352 pages
...A Degree of a great circle of the earth contains 60 geographical, Or 69$ English miles. Each degree is divided into 60 equal parts, called minutes ; and each minute into 60seconds. Degrees are usually marked with a small cypher over them (°), minutes with one dash ('),... | |
 | Thomas Simpson - Algebra - 1821 - 426 pages
...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... | |
 | Daniel Adams - Geography - 1821 - 354 pages
...degree of a great circle of the earth contains 60 geographical, 91 ti9f English miles. Each degree is divided into 60 equal parts, called minutes; and each minute into 60 seconds. Degrees are usually marked with a small cypher over them (°), minutes with one dash ('),... | |
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The circumference of every circle is supposed to be divided into 360 equal parts... 
