| Jeremiah JOYCE - Science - 1852 - 430 pages
...contained by the two legs, having the angular point for its centre. 4. Every circle is supposed 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. Degrees, minutes, and seconds are marked at the... | |
| James B. Dodd - Arithmetic - 1852 - 410 pages
...Circumference, and the Measure of Angles. § 304. The Circumference of every circle 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. Degrees, minutes, and seconds, are denoted thus... | |
| John William Norie - Nautical astronomy - 1852 - 848 pages
...within the circumference. The circumference of every circle is usually supposed to be divided into 860 **equal parts, called DEGREES ; each degree into 60 equal parts, called MINUTES ; each minute into** 60 equal parts, called SECONDS ; and so on. Degrees, minutes, and seconds, are thus expressed, 40°... | |
| Charles Davies - Geometry - 1886 - 340 pages
...Definitions. 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 minutes,** and each minute into 60 equal parts called seconds. The degrees, minutes, and seconds are marked thus... | |
| James B. Dodd - 1853 - 398 pages
...Circumference, and the Measure of Angles. § 393. The Circumference of every circle 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. Degrees, minutes, and seconds, are denoted thus... | |
| Lucius D. Gould - Carpentry - 1853 - 234 pages
...AC and EC, is called the angle ACE, or EGA. Fig. 9. 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, etc. A semicircle, therefore, contains 180 degrees, and a... | |
| Charles Haynes Haswell - Engineering - 1853 - 318 pages
...Cotangent is the tangent of the' complement of the arc. 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, and BO on. The Complement of an angle is what remains after... | |
| Charles Davies, William Guy Peck - Mathematics - 1855 - 628 pages
...computation. For the purpose of comparing angles in this system of measurement, the entire 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. The right angle contains 90 degrees. The radius... | |
| Charles Davies - Geometry - 1855 - 340 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, and seconds are marked... | |
| Elias Loomis - Trigonometry - 1855 - 192 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... | |
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