Books Books 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. Elements of Surveying: Including a Description of the Instruments and the ... - Page 32
by Charles Davies - 1837 - 249 pages ## 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",... ## An Elementary Geometry and Trigonometry

William Frothingham Bradbury - Geometry - 1872 - 268 pages
...of methods of computing plane angles and triangles. 17. The circumference of every circle is dividad into 360 equal parts, called degrees ( ° ), each...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, 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,... ## 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",... ## High-school Astronomy

Hiram Mattison - 1872 - 264 pages
...sometimes called radiations or itldianr-6. All circles, whether great or small, are supposed to be divided into 360 equal parts, called degrees / each degree into 60 equal paits, called minutes; and each minute into 60 equal parts, called seconds. They are marked respectively... ## An Elementary Geometry and Trigonometry

William Frothingham Bradbury - Geometry - 1873 - 288 pages
...Trigonometry treats of methods of computing plane angles and triangles. П, The circumference of every circle is divided into 360 equal parts, called degrees...and each minute into 60 equal parts, called seconds ( " ). I8« As angles at the centre vary as their arcs, or arcs as their corresponding angles, the... ## Elements of Geometry and Trigonometry: From the Works of A.M. Legendre

Adrien Marie Legendre - Geometry - 1874 - 500 pages
...angle. For 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",... ## Elements of Astronomy: Accompanied with Numerous Illustrations, a Colored ...

Sir Norman Lockyer - Astronomy - 1874 - 332 pages
...circle may be divided into 360 equal parts, called Degrees (marked °). Each degree may be divided into 60 equal parts, called Minutes (') ; and each minute into 60 equal parts, called Seconds ("). A circumference may also be divided into 12 equal parts, of 30 degrees each. These are called... 