| 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... | |
| 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... | |
| 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"... | |
| 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",... | |
| 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... | |
| 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... | |
| 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... | |
| 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"... | |
| 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... | |
| 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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