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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 60 equal parts, called seconds ; and these into thirds, etc.
Instructions Given in the Drawing School Established by the Dublin Society ... - Page 241
by Joseph Fenn - 1769

## A complete treatise on practical land-surveying

Anthony Nesbit - 1870 - 578 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. 40. The diameter of a circle is a right line drawn through the centre, A and terminating in the circumference...

## Arithmetic and Its Applications ...

Dana Pond Colburn - 1871 - 392 pages
...1vge or small, is supposed to be divided into 360 equal pwrtsf called degrees. Each degree is divided into 60 equal parts, called minutes, and each minute into 60 equal parts, called čeconds. (g.) A degree is to be regarded simply as the 860th part of the circumference of the circle...

## Elements of Surveying and Leveling: With Descriptions of the Instruments ...

Charles Davies - Surveying - 1871 - 448 pages
...the quadrant is divided into 90 equal parts, each of which is called a degree; each degree into 00 equal parts, called minutes; and each minute into 60 equal parts, called seconds. Degrees, minutes, and seconds, are denoted by the symbols °, ', ". Thus, the expression 7° 22' 33",...

## Elements of Geometry and Trigonometry

Adrien Marie Legendre - Geometry - 1871 - 490 pages
...quadrant is divided into 90 equal parts, each of which is called a degree / each degree into 60 equaF parts, called minutes; and each minute' into 60 equal parts, called seconds. Degrees, minutes, and seconds, are denoted by the symbols °, ', ". Thus, the expression 7° 22' 33",...

## Elements of geometry, with ... trigonometry

André Darré - 1872 - 226 pages
...circumference of every circle is supposed to be divided are called degrees ; each degree is divided into 60 equal parts called minutes ; and each minute into 60 equal parts called seconds. Symbols are used to express degrees, minutes, and seconds. Thus 57° 17' 45" means 57 degrees, 17 minutes,...

## An Elementary Geometry and Trigonometry

William Frothingham Bradbury - Geometry - 1872 - 268 pages
...The circumference of every circle is dividad into 360 equal parts, called degrees ( ° ), each degree into 60 equal parts, called minutes ( ' ), and each minute into 60 equal parts, called seconds ( " ). 18. As angles at the centre valy as their arcs, or arcs as their corresponding angles, the measure...

## Elements of Geometry and Trigonometry from the Works of A.M. Legendre ...

Charles Davies - Geometry - 1872 - 464 pages
...the quadrant is divided into 90 equal parts, each of which is called a degree / each degree into 80 equal parts, called minutes ; and each minute into 60 equal parts, called seconds. Degrees, minutes, and seconds, are denoted by the symbols °, ', ". Thus, the expression 7 a 22' 33",...

## Elements of Geometry and Trigonometry: From the Works of A.M. Legendre

Adrien Marie Legendre - Geometry - 1874 - 500 pages
...convenience, the quadrant is divided into 90 equal parts, each of which is called a degree ; each degree into 60 equal parts, called • minutes ; and each minute into 60 equal parts, called seconds. Degrees, minutes, and seconds, are denoted by the symbols °, ', ". Thus, the expression 7° 22' 33",...