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... is supposed to be divided into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds. Degrees, minutes, and seconds, are designated respectively, by the characters ° ' ". For example, ten degrees, eighteen minutes, and...
The Geometrician: Containing Essays on Plane Geometry, and Trigonometry ... - Page 60
by Benjamin Donne - 1775 - 159 pages

## A Treatise on Surveying: Containing the Theory and Practice : to which is ...

John Gummere - Surveying - 1817 - 206 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...

## A Treatise on Practical Surveying: Which is Demonstrated from Its First ...

Robert Gibson - Surveying - 1818 - 478 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, which...

## Geometrical Problems Deducible from the First Six Books of Euclid, Arranged ...

Miles Bland - Euclid's Elements - 1819 - 377 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...

## Geometrical Problems Deducible from the First Six Books of Euclid, Arranged ...

Miles Bland - Euclid's Elements - 1819 - 377 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...

## A Treatise of Algebra: Wherein the Principles are Demonstrated ... To which ...

Thomas Simpson - Algebra - 1821 - 408 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...

## Geography: Or, A Description of the World. In Three Parts. Part I ...

Daniel Adams - Geography - 1821 - 337 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 ('),...

## A Treatise on Practical Gauging

...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, &c. 48. The arc of a quadrant contains 90 degrees, which is the measure of a right angle. 49. An ellipse...

## A general view of the sciences and arts, Volume 1

William Jillard Hort - 1822
...CH. 2. If the circumference of a circle 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 ; and so on ; then, as many degrees, minutes, and seconds, &c. as are in any arch ; so many degrees,...