 | George Augustus Walton - Arithmetic - 1864 - 376 pages
...to an opposite foiat, is called a Diameter. 188. The circumference of any circle is supposed to be divided into 360 equal parts, called Degrees, each degree into 60 Minutes, and each minute into 60 Seconds. TABLE. marked '. u о 60 seconds (") = 1 minute, 60' =1 degree, 360... | |
 | William John Macquorn Rankine - Civil engineering - 1867 - 858 pages
...of AB and AC with any radius; that the circumference of that circle is divided into SCO equal arcs called degrees, each degree into 60 minutes, each minute into 60 seconds, and so on : and that the number of such divisions of the circle contained in the arc DE which subtends... | |
 | C. Davies - 1867 - 342 pages
...GEOMETRYDefinitions 28 The circumference of a circle is used for the measurement of angles- For this purpose it is divided into 360 equal parts called degrees, each degree into 60 equal parts called ninutes, and each minute into 60 equal parts called secondsThe degrees, minutes,... | |
 | George Augustus Walton, Electa Nobles Lincoln Walton - Arithmetic - 1869 - 350 pages
...is called a Diameter. Define plane surface ; circle ; circumference ; arc ; radius ; diameter. 33O. The circumference of a circle is divided into 360...parts called degrees, each degree into 60 minutes, and each minute into 60 seconds. These are the units of CIRCULAR- MEASURE. TABLE. 60 seconds (") =... | |
 | Camille Flammarion - Astronomy - 1871 - 302 pages
...be understood that the circumference of astronomical circles used in observation is divided into 360 parts called degrees, each degree into 60 minutes, each minute into 60 .seconds. This value of a second is so small that a spider's thread, placed in the field of view of' the telescope,... | |
 | Elias Loomis - Geometry - 1871 - 302 pages
...Trigonometry treats of spherical triangles. (19.) The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 minutes, and each minute into 60 seconds. Degrees, minutes, and seconds are designated by the characters °,... | |
 | George Augustus Walton - Arithmetic - 1873 - 348 pages
...is called a Diameter. Ijefine plane surface ; circle ; circumference ; arc ; radius ; diameter. 330. The circumference of a circle is divided into 360...parts called degrees, each degree into 60 minutes, and each minute into 60 seconds. These are the units of CIRCULAR MEASURE. TABLE. 60 seconds (") = 1... | |
 | William Frothingham Bradbury - Geometry - 1873 - 288 pages
...Trigonometry treats of methods of computing plane angles and triangles. П, 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 ( " ). I8«... | |
 | Samuel Sloan - 1873 - 298 pages
...and two radii drawn to its extremities ; a line is tangent to a circle which does not intersect it. The circumference of a circle is divided into 360 equal parts, called degrees ; it will be observed that an angle of 45° is the half of a rightangle ; an angle of 60° is two-thirds... | |
 | William Alexander Myers - Circle-squaring - 1873 - 238 pages
...spherical trigonometry treats of spherical triangles. The circumference of a circle is supposed to be divided into 360 equal parts, called degrees; each degree into 60 minutes, and each minute into 60 seconds. Degrees, minutes, and seconds are designated by the characters °,... | |
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The circumference of a circle is divided into 360 equal parts, called degrees ; each degree into 60 minutes ; each minute into 60 seconds. 
