| American School (Lansing, Ill.) - Algebra - 1902 - 80 pages
...degrees is measured by ^ of the circumference. 185. For accurate measurement each degree is divided **into 60 equal parts called minutes and each minute into 60 equal parts** ('ailed seconds. The symbols of degrees, minutes and seconds are °, ', ", respectively. To express... | |
| American School (Chicago, Ill.) - Engineering - 1903 - 428 pages
...degrees is measured by ^ of the circumference. 185. For accurate measurement each degree is divided **into 60 equal parts called minutes and each minute into 60 equal parts called seconds.** The symbols of degrees, minutes and seconds are °, ', ", respectively. To express 23 degrees, 47 minutes... | |
| Walter Nelson Bush, John Bernard Clarke - Geometry - 1905 - 378 pages
...theorem may be stated thus : A central angle is measured by its intercepted arc. The circumference **is divided into 360 equal parts, called degrees ;...and each minute into 60 equal parts, called seconds.** For brevity, an angle measured by an arc of 1° is called an angle of 1° ; etc. NOTE. — This division... | |
| John Marvin Colaw, Frank Williamson Duke - Arithmetic - 1906 - 408 pages
...passing around the earth on its surface ? 444. In measuring circumferences, each degree is divided in **60 equal parts, called minutes, and each minute into 60 equal parts, called seconds.** In this measure, degrees, minutes, and seconds are written with symbols. Thus, 3 degrees, 25 minutes,... | |
| Sidney Luxton Loney - Hydrostatics - 1905 - 332 pages
...inconvenient unit of measurement on account of its size. We therefore subdivide a right angle into 90 **equal parts called degrees, each degree into 60 equal...and each minute into 60 equal parts called seconds.** The symbols used for a degree, a minute, and a second are 1°, 1', and 1". Thus 10° 11' 12" means... | |
| William A. Radford - 1907 - 332 pages
...divided by mathematicians into 360 equal parts, called degrees ; each degree being again subdivided **into 60 equal parts, called minutes, and each minute into 60 equal parts called seconds.** Hence, it follows that the arc of a quarter circle or quadrant includes 90 degrees; that is, one-fourth... | |
| Astronomy - 1907 - 710 pages
...measuring arc is a part 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.** The magnitude of an angle is then expressed by the number of degrees, minutes, and seconds that its... | |
| Henry Sinclair Hall - 1908 - 286 pages
...which it is perpendicular to AB. (ii) All right angles are equal. A right angle is divided into 90 **equal parts called degrees (°) ; each degree into 60 equal parts called minutes** (') ; each minute into 60 equal parts called seconds ("). In the above figure, if OC revolves about... | |
| George E. Mercer - Arithmetic - 1909 - 312 pages
...circumference is an arc. A to B and B to C are arcs. The circumference of every circle is divided into 300 **equal parts called degrees, each degree into 60 equal...and each minute into 60 equal parts called seconds.** jJ5 of a circumference is called 1 degree of arc. J of a circumference, or 90 degrees, is called a... | |
| 1912 - 558 pages
...degrees, ie, it is =i of a circumference. In order to obtain accurate measurements each degree is divided **into 60 equal parts called minutes and each minute into 60 equal parts called seconds.** f65\ {BO /OS F1 g - 6L Angular Measurement SOLIDS A solid has three dimensions—length, breadth, and... | |
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