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Every circumference of a. circle, whether the circle be large or small, is supposed to be divided into 360 equal parts called degrees. Each degree is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds.
Easy Lessons in Geography and History: Designed for the Use of the Younger ... - Page 39
by Joseph Allen - 1832 - 116 pages

## Burnham's Arithmetic, Revised: A New System of Arithmetic, on an Improved ...

Charles Guilford Burnham - Arithmetic - 1841 - 324 pages
...every circle is supposed to be divided into 360 equal parts, called degrees; and each degree into 0O equal parts, called minutes; and each minute into 60 equal parts, called seconds; and these into thirds, &c. Hence a semi-circle containi 180 degrees, and a quadrant 90 degrees. 15....

## Course of Civil Engineering: Comprising Plane Trigonometry, Surveying, and ...

John Gregory - 1842 - 301 pages
...standard derived from the division of a circle into 360 equal parts, called degrees ; each degree being divided into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds, &c. As angles are proportional to the arcs on which they stand (33.6,) the subdivision of the circumference...

## Elements of Geography, Modern and Ancient with a Modern and an Ancient Atlas

Joseph Emerson Worcester - Geography - 1844 - 331 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. " They are marked thus, 23° 28' 16"; ie 83 degrees, 23 minutes, and 16 seconds. The Equator is an...

## Elements of Geography, Modern and Ancient with a Modern and an Ancient Atlas

Joseph Emerson Worcester - Classical geography - 1844 - 360 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 secotuls. They are marked thus, 23° 88' 16"; ie 23 degrees, 28 minutes, and 16 seconds. The Less Circles...

## Higher Geometry and Trigonometry: Being the Third Part of a Series on ...

Nathan Scholfield - Conic sections - 1845 - 244 pages
...the circle is supposed to be divided into 360 equal parts, called degrees, and each of those degrees is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds ; and so on, to thirds, fourths, &c. These divisions are designated by the following characters, °...

## A Series on Elementary and Higher Geometry, Trigonometry, and Mensuration ...

...the circle is supposed to be divided into 360 equal parts, called degrees, and each of those degrees is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds ; and so on, to thirds, fourths, &c. These divisions are designated by the following characters, 0...

## A system of practical mathematics; being no.xvi. of a new series of school-books

Scottish school-book assoc - 1845 - 434 pages
...circle is supposed to be divided into 300 equal parts, called degrees, and each degree 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 distinguished by the following marks : — 7° 3' 24", which is...

## Uranography: Or, a Description of the Heavens; Designed for Academies and ...

Ezra Otis Kendall - Astronomy - 1845 - 406 pages
...that circle. Every circle is considered as divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds. They are marked 0 ' " — thus: 10° 2' 20" — which is read ten degrees, two minutes, and twenty...

## Elements of plane (solid) geometry (Higher geometry) and trigonometry (and ...

Nathan Scholfield - 1845 - 896 pages
...the circle is supposed to be divided into 360 equal parts, called degrees, and each of those degrees is divided into 60 equal parts called minutes, and each minute into CO equal parts called seconds ; and so on, to thirds, fourths, &c. These divisions are designated by...

## Elements of Drawing and Mensuration Applied to the Mechanic Arts: A Book for ...

Charles Davies - Geometrical drawing - 1846 - 254 pages
...the measurement of angles. 26. How is it divided? It is divided into 360 equal parts called degrees, each degree is divided into 60 equal parts called...and each minute into 60 equal parts called seconds. The degrees, minutes, and seconds, are marked thus, °, ', " ; and 9° 18' 10", are read, 9 degrees,...