 | Benjamin Greenleaf - Arithmetic - 1850 - 368 pages
...angle contained by the lines BA and AD is called the angle BAD, or DA B. 56. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 minutes, each minute into 60 seconds, and so on. Hence a semicircle contains 180 degrees,... | |
 | Charles Guilford Burnham - 1850 - 350 pages
...° 30 degrees " 1 sign, «. 12 signs,or360° 1 circle. " Every circle, without regard to its size, is supposed to be divided into 360 equal parts, called degrees, and these again to be subdivided into minutes and seconds ; so that the absolute quantity expressed by... | |
 | Charles Davies - Arithmetic - 1850 - 412 pages
...236, the number of days required ; and so of others. DIVISION OF THE CIRCLE MEASURE 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.... | |
 | Thomas Milner - 1850 - 604 pages
...the equator, etc. Small circles divide the globe into two unequal parts, as the tropics, etc. Every circle is supposed to be divided into 360 equal parts, called degrees ; every degree into sixty equal parts, called minutes ; and every minute into sixty equal parts, called... | |
 | Benjamin Naylor - Geography - 1851 - 154 pages
...of latitude are circles passing round the earth parallel to the equator. Every Circle of the earth is supposed to be divided into 360 equal parts, called degrees, and each of these degrees into 60 equal parts, called minutes. The Latitude of any place is its distance North... | |
 | Alexander Ingram - 1851 - 202 pages
...a Quadrant ; and, if half a right angle, it is called an Octant. NOTE 2. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees, and a degree into 60 equal parts, called minutes, and a minute into 60 seconds, and so on. Degrees are... | |
 | Charles Davies - Arithmetic - 1851 - 178 pages
...measuring the motions of th« heavenly bodies. 2. How is every circle supposed to be divided ? Every circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divided into 60 minutes, and each minute into 60 seconds. Solid, or Cubic Measure. 1.... | |
 | Adrien Marie Legendre - Geometry - 1852 - 436 pages
...when a sufficient number of the six parts is given. 3. For the purpose of trigonometrical calculation, the circumference of the circle is supposed to be divided into 360 equal parts, called degrees ; each degree is supposed to be divided into 60 equal parts, called minutes; and each minute into 60... | |
 | Charles Davies - Geometry - 1886 - 340 pages
...a sufficient number of the six parts is given. 21. For the purpose of trigonometrical calculation, the circumference of the circle is supposed to be divided into 360 equal parts, called degrees ; each degree is supposed to be di. rided into 60 equal parts, called minutes ; and each minute into... | |
 | Charles Davies - Navigation - 1852 - 412 pages
...when a sufficient number of the six parts is given. 3. For the purpose of trigonometrical calculation, the circumference of the circle is supposed to be divided into 360 equal parts, called degrees ; each degree is supposed . to be divided into 60 equal parts, called minutes ; and each minute into... | |
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The circumference of every circle is supposed to be divided into 360 equal parts, called degrees... 
