| John Playfair - Geometry - 1836 - 114 pages
...circumference of a circle may be supposed to be divided into 360 equal parts called degrees ; and each degree **into 60 equal parts called minutes, and each minute into 60 equal parts called seconds,** &c. And as many degrees, minutes, seconds, &c. as are contained in any arc, of so many degrees, minutes,... | |
| Adrien Marie Legendre - Geometry - 1836 - 359 pages
...calculation, the cir cumference of the 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.** The semicircumference, or the measure of two right angles, contains 180 degrees ; the quarter of the... | |
| L. H. Tyler - 1837
...smallest to the largest, is conceived 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.** These divisions are usually expressed by signs : thus, 15° 10' 15" signifies five degrees, ten minutes,... | |
| Commissioners of National Education in Ireland - Measurement - 1837 - 262 pages
...circumference pf every circle is generally divided into 360 equal parts, called degrees ; and every degree **into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.** The angles are measured by the number of degrees contained in the arcs which subtend them ; thus, if... | |
| Surveys - 1837 - 249 pages
...calculations, the circumference of the 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.** As the circumference of a circle may be regarded as a proper measure of angles, having their vertices... | |
| James Thomson (LL.D.) - Arithmetic - 1837 - 284 pages
...every circle is supposed to be 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.** MISCELLANEOUS TABLE. 12 articles =1 dozen „ ,-. ( 12 dozen = 1 gross 6 6core or 120" = i.ong 20 articles... | |
| Thomas Kerigan - Nautical astronomy - 1838
...circles of the spheres, is divided into 360 equal parts, called degrees ; each degree is divided into GO **equal parts, called minutes, and each minute into 60 equal parts, called seconds.** ,57 The Meridian of any place on the earth, is a semicircle which passes through that place, cuts the... | |
| Euclides - 1838
...subtended by one of these, as the angular unit. Each degree is moreover supposed to be subdivided into 00 **equal parts, called minutes; and each minute into 60 equal parts, called seconds,** and so on. The angle subtended by any number of these will, therefore, be some fractional part of the... | |
| Charles Davies - Surveying - 1839 - 261 pages
...calculations, the circumference of the 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.** PLANE TRIGONOMETRY \ As the circumference of a circle may be regarded as a proper measure of angles,... | |
| Charles Davies - Surveying - 1839 - 261 pages
...calculations, the circumference of the 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.** PLANE TRIGONOMETRY. V As the circumference of a circle may be regarded as a proper measure of angles,... | |
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