 | Robert Stuart - Architecture - 1854 - 1272 pages
...which all lines drawn from a certain point wiihiii it, called the centre, are equal. The circumference is supposed to be divided into 360 equal parts, called degrees, each degree is again subdivided into 60 minutes, each minute into 60 thirds, each third into 60 fourths, &c. ad... | |
 | Charles Davies - Geometry - 1854 - 436 pages
...parts is given. 3. For the purpose of trigonometrical calculation, the circumference of the circle is supposed to be divided into 360 equal parts, called degrees ; each degree is supposed to be divided into 60 equal parts, called minutes; and each minute into 60 equal parts,... | |
 | Jeremiah Day - Logarithms - 1855 - 344 pages
...interesting methods of investigation in the higher branches of analysis, particularly in physical astronomy. 72. Trigonometry is either plane or spherical. The...to be divided into 360 equal parts called degrees, e?tch degree into 60 minutes, each minute into 60 seconds, each second into 60 thirds, &c., marked... | |
 | Elias Loomis - Trigonometry - 1855 - 192 pages
...triangles; Spherical 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 °,... | |
 | Hiram Mattison - Astronomy - 1856 - 254 pages
...thus dispersed is sometimes called radiations or radiance. All circles, whether great or small, are 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. They are marked respectively... | |
 | Charles Davies - Arithmetic - 1856 - 450 pages
...the motions of the heavenly bodies, and also in measuring angles. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divided into CO minutes, and each minute into 60 seconds. TABLE. 422. For what is circular measure... | |
 | Benjamin Greenleaf - Arithmetic - 1857 - 336 pages
...is a straight line drawn from its centre to its circumference; as CA, CB, or CD. Every circle, large or small, is supposed to be divided into 360 equal parts, called degrees. A Quadrant is one fourth of a circle, or an arc of 90° ; as AB. An Jingle, as ACB, is the inclination... | |
 | Adrien Marie Legendre, Charles Davies - Geometry - 1857 - 442 pages
...parts is given. 3. For the purpose of trigonometrical calculation, the circumference of the circle is supposed to be divided into 360 equal parts, called degrees ; each degree is supposed to be divided into 60 equal parts, called minutes; and each minute into 60 equal parts,... | |
 | Benjamin Greenleaf - Arithmetic - 1857 - 452 pages
...a straight line drawn from its centre to its circumference ; as CA, CB, or CD. Every circle, large or small, is supposed to be divided into 360 equal parts, called degrees. A Quadrant is one fourth of a circle, or an arc of 90°; as AB. An Angle, as ACB, is the inclination... | |
 | Charles Haynes Haswell - Measurement - 1858 - 350 pages
...cutting it. A 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 so on. The Complement of an angle is what remains after subtracting... | |
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The circumference of 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. 
