 | Charles Davies - Trigonometry - 1849 - 372 pages
...calculation, the circumference of the circle is divided into 360 equal parts, called •legrees; each degree into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds. nated by the characters : °,',": thus the expression 16° 6' 15" represents an arc, or an angle, of... | |
 | Mary Somerville - Physical sciences - 1849 - 568 pages
...sun. NOTE 50, p. 11. Ninety degrees. A circle is divided into 360 equal parts, or degrees; each degree into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds. It is usual to write these quantities thus, 15° Ki' Id", which means fifteen degrees, sixteen minutes,... | |
 | Daniel Adams - Arithmetic - 1849 - 142 pages
...10. The circumference of every circle is divided into 360 equal parts, called Degrees; each degree into 60 equal parts, called Minutes ; and each minute into 60 equal parts, called Seconds. 11. Degrees, minutes, and seconds, are marked respectively °, ', "; they are used in mensuration and... | |
 | Charles Davies - Arithmetic - 1850 - 412 pages
...OF TIME. 40. 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. For astronomical purposes, the circumference of the circle is also supposed to be divided into 12 equal... | |
 | Daniel Adams - Measurement - 1850 - 144 pages
...10. The circumference of every circle is divided into 360 equal parts, called Degrees ; each degree into 60 equal parts, called Minutes ; and each minute into 60 equal parts, called Seconds. 11. Degrees, minutes, and seconds, are marked respectively °, ', " ; they are used in mensuration... | |
 | Charles Davies - Geometry - 1850 - 238 pages
...measurement of angles. For this purpose it is divided into 360 equal parts called degrees, each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. The degrees, minutes, and seconds are marked thus ° ' " ; and 9° 18' 16", are read, 9 degrees 18... | |
 | Charles Davies - Geometry - 1850 - 218 pages
...measurement of angles. For this purpose it is divided into 360 equal parts called degrees, each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. The degrees, minutes, and seconds are marked thus ° ' " ; and 9° 18' 16", are read, 9 degrees 18... | |
 | Charles Guilford Burnham - Arithmetic - 1850 - 350 pages
...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. Hence a semicircle contains 180 degrees, and a quadrant 90 degrees. 15.... | |
 | Roswell Chamberlain Smith - Arithmetic - 1850 - 314 pages
...through the centre of the earth. 15 CORRESPOND, [L. corrcspondeo.] To answer to; communicate with. parts, called minutes, and each minute into 60 equal parts, called seconds. 76. The circumference1 of the earth is a great circle of 360 de grees. On this circle every minute... | |
 | Sir Henry Edward Landor Thuillier - Surveying - 1851 - 826 pages
...circle is supposed to be divided off 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. Degrees are expressed thus:0 minutes, thus/ seconds, thus:" A Quadrant of a circle will therefore contain... | |
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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. 
