Books Books ... is supposed to be divided into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds. Degrees, minutes, and seconds, are designated respectively, by the characters ° ' ". For example, ten degrees, eighteen minutes, and... The Geometrician: Containing Essays on Plane Geometry, and Trigonometry ... - Page 60
by Benjamin Donne - 1775 - 159 pages ## Mensuration

William Shaffer Hall - Measurement - 1893 - 62 pages
...unit is a right angle. The right angle is divided into 90 equal parts called degrees, and each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. Angles at the centre of a circle have the same ratio as the arcs which are subtended by them (Ww. Geom.,... ## ELEMENTARY SYNTHETIC GEOMETRY OF THE POINT, LINE AND CIRCLE IN THE PLANE

...For 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 42°. Theorem... ## The Elementary Arithmetic: Oral and Written

Albert Newton Raub - Arithmetic - 1894 - 192 pages
...called a Diameter. 129. Every circumference 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. TABLE. 60 seconds (") =1 minute, (' ). 60 minutes = 1 degree, ( ° ). 30 degrees = 1 sign, s. 12 signs... ## A Treatise on Surveying: Comprising the Theory and the Practice, Part 1

...Every circumference is regarded as being divided into 360 equal parts, culled degrees. Each degree is divided into 60 equal parts, called minutes, and each minute into 60 seconds. These divisions are indicated by the murks ° ' ". Thus 28 degrees, 17 minutes, and 49 seconds,... ## Elementary Algebra and Mensuration: Instruction Paper

American School (Lansing, Ill.) - Algebra - 1902 - 72 pages
...angle of 45 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... ## Mathematics

...angle of 45 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... ## The Elements of Geometry

Walter Nelson Bush, John Bernard Clarke - Geometry - 1905 - 355 pages
...its intercepted arc. The circumference 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. For brevity, an angle measured by an arc of 1° is called an angle of 1° ; etc. NOTE. — This division... ## School Arithmetic: Practical Book

John Marvin Colaw, Frank Williamson Duke - Arithmetic - 1906 - 400 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,... ## Mechanics and Hydrostatics for Beginners

Sidney Luxton Loney - Hydrostatics - 1907 - 290 pages
...account of its size. We therefore subdivide a right angle into 90 equal parts called degrees, each degree into 60 equal parts called minutes, 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... 