 | Silvestre François Lacroix - 1826 - 190 σελίδες
...custom has been to divide the entire circumference into 360 parts, called degrees, and each degree into 60 parts called minutes, and each minute into 60 parts, called seconds, and each second into 60 parts, called thirds, &c. The character used to denote -degrees is °, placed... | |
 | Frederic A. Adams - 1846 - 230 σελίδες
...is supposed to have its circumference divided into 360 equal parts, called degrees ; and each degree into 60 parts, called minutes ; and each minute into 60 parts, called seconds. Whether the circle is great or small, it is still divided into 360 degrees ; a degree therefore is... | |
 | George Wirgman Hemming - 1851 - 176 σελίδες
...England taken for the unit, and called a degree. To avoid the use of fractions, a degree is divided into 60 parts, called minutes, and each minute into 60 parts, called seconds ; and all angles are then described by stating the number of degrees, minutes, and seconds which they... | |
 | George Dallas Lind - 1882 - 544 σελίδες
...Every circle, whether great or small, is divided into 360 equal parts called degrees (°), each degree into 60 parts called minutes (' ), and each minute into 60 parts called seconds ("). The distance then from the equator to either pole is 90°. There can be then but 90° north or... | |
 | Charles Edward White - 1897 - 312 σελίδες
...143. The circumference of every circle is divided into 360 equal parts called Degrees, each degree into 60 parts called Minutes, and each minute into 60 parts called Seconds. 144. An Angle is the difference in direction between two straight lines. The point of meeting is the... | |
 | John Marvin Colaw, John Kelley Elkwood - 1900 - 450 σελίδες
...In measuring angles, the circumference is divided into 360 equal parts, called degrees ; each degree into 60 parts, called minutes ; and each minute into 60 parts, called seconds. 1. The length of a degree varies. A degree is ^Jo of a circumference, and the greater the circumference... | |
 | Charles Edward White - 1901 - 472 σελίδες
...203. The circumference of every circle is divided into 360 equal parts called Degrees, each degree into 60 parts called Minutes, and each minute into 60 parts called Seconds. 204. An Angle is the difference in direction between two straight lines. The point of meeting is the... | |
 | Joseph Harrison (A.M.I.C.E.) - 1903 - 300 σελίδες
...^ of a turn respectively ; hence their general utility in graphical work. The degree is subdivided into 60 parts, called minutes, and each minute into 60 parts, called seconds. These angles are, however, too minute to be dealt with in our work. We shall find it convenient to... | |
 | United States. War Department - 1945 - 224 σελίδες
...Employed in Optics the angle formed by dividing a right angle into 90 equal parts. Each degree is divided into 60 parts called minutes, and each minute into 60 parts called seconds. b. In the use of fire control equipment, either degrees or mils (par. 121) may be used to designate... | |
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Degrees, each degree into 60 parts called Minutes, and each minute into 60 parts called Seconds. 