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" 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
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Scientific and practical geometry for self-instruction

Rolla Rouse - 1879 - 402 pages
...(B 27, abdc). 20. For comparing the arc of an angle with a circumference, the latter is taken to be divided into 360 equal parts called Degrees, each...and each minute into 60 equal parts called Seconds ; a right angle containing 90 degrees, and a semicircle 180 degrees. Degrees are marked , minutes...
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Colton's Common School Geography: Illustrated by Numerous Engravings and ...

George Woolworth Colton, Joseph Hutchins Colton - Atlases - 1880 - 152 pages
...unequal parts. 4. For the purpose of measurement, every circle is conceived to be divided into 3(30 equal parts called Degrees ; each degree, into 60 equal parts called minutes; and each minute, into GO equal parts called Seconds. Degrees are marked , minutes ', seconds ''. 5. The great circle which...
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The Field Engineer: A Handy Book of Practice in the Survey, Location, and ...

William Findlay Shunk - Railroad engineering - 1880 - 362 pages
...one-quarter of the circle, and is the measure of a right angle. Each degree is further divided 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"...
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Elements of Geometry and Trigonometry from the Works of A.M. Legendre ...

Charles Davies, Adrien Marie Legendre - Geometry - 1885 - 538 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",...
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Harper's School Geography

Geography - 1885 - 150 pages
...Every circle is divided into 360 equal parts called degrees ; each degree is divided И" m' ... into GO equal parts called minutes; and each minute into 60 equal parts called seconds. The smaller the circle, the short- 18g er are the degrees. Degrees DECREES OF THE CIRCLE. are marked...
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Elements of Geometry and Trigonometry: With Applications in Mensuration

Charles Davies - Geometry - 1886 - 352 pages
...Definitions. 28 The circumference of a circle is used for the measure. ment of angles. For this purpose it is divided into 360 equal parts called degrees, each...parts called minutes, and each minute into 60 equal pans called second s. The degrees, minutes, and seconds are marked thus ' " ; and 9 18' 16", are...
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A Grammar Shcool Arithmetic

George Albert Wentworth - Arithmetic - 1886 - 392 pages
...about a point in a plane is divided into 360 equal parts, called degrees. Each degree is subdivided into 60 equal parts, called minutes, and each minute into 60 equal parts, called seconds. Likewise the circumference of a circle is divided into 3GO equal arcs, each corresponding to an angle...
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The Field Engineer: a Handy Book of Practice in the Survey, Location, and ...

William Findlay Shunk - Railroad engineering - 1886 - 378 pages
...inclndes one-quarter of the circle, and is the measure of a right angle. Each degree is further divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. Degrees, minutes, and seconds are denoted by the symbols , 1, ": thus the expression 7 221 33"...
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The American Practical Navigator: Being an Epitome of Navigation and ...

Nathaniel Bowditch - Nautical astronomy - 1888 - 704 pages
...small, are supposed to have their circumference 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 so on into thirds, fourths, Jtc. ; and an arc is said to be of as many degrees as it contains...
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Elementary Synthetic Geometry of the Point, Line and Circle in the Plane

Nathan Fellowes Dupuis - Geometry - 1889 - 370 pages
...practical purposes the right angle is divided into 90 equal parts called degrees ; each degree is divided into 60 equal parts called minutes ; and each minute into 60 equal parts called seconds. 20 seconds and six-sevenths of a second, follows : — 51 25' 42f . This is denoted as Theorem. —...
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