| Charles Davies, William Guy Peck - Electronic book - 1855 - 592 pages
...purpose of comparing angles in this system of measurement, the entire circumference is divided into 300 **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... | |
| Hiram Mattison - Astronomy - 1856 - 254 pages
...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 thus: Degrees (°),... | |
| Charles Davies, William Guy Peck - Mathematics - 1857 - 608 pages
...purposes of trigonometrical computation, each quadrant or right angle is supposed to be divided into 90 **equal parts, called degrees ; each degree into 60 equal parts, called minutes ; each minute into** 60 equal parts, called seconds ; so that a right angle contains 32400 seconds. The complement of an... | |
| Bourdon (M., Louis Pierre Marie) - Arithmetic - 1858 - 262 pages
...point within, called the centre. In all the scientific works in this country, the circumference is **divided into 360 equal parts, called degrees (°)...equal parts, called minutes (,); each minute into** 60 equal parts, called seconds ("). This is called the sexagesimal division. When the French reformed... | |
| John Hymers - Logarithms - 1858 - 292 pages
...of being determined geometrically, and furnishes an invariable standard of angular measure) into 90 **equal parts called degrees, each degree into 60 equal parts called minutes, each minute into** 60 equal parts called seconds; then an angle is expressed by the number of degrees, minutes, seconds,... | |
| Charles Haynes Haswell - Measurement - 1858 - 350 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 so on. The Complement of an angle is what remains after... | |
| Elias Loomis - Logarithms - 1859 - 372 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... | |
| Josiah Lyman - Protractors - 1862 - 92 pages
...is the fourth part of a circle; as AFB, Fig. 1. 8. 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, &c. 9. The Measure of an angle is the arc intercepted... | |
| Benjamin Greenleaf - Geometry - 1861 - 638 pages
...fixed upon as the unit of angular measure. For this purpose a right angle is generally divided into 90 **equal parts called degrees, each degree into 60 equal parts called minutes, each minute into** 60 equal parts culled seconds ; then an angle is expressed by the number of degrees, minutes, seconds,... | |
| Benjamin Greenleaf - Geometry - 1862 - 518 pages
...fixed upon as the unit of angular measure. For this purpose a right angle is generally divided into 90 **equal parts called degrees, each degree into 60 equal parts called minutes, each minute into** 60 equal parts called seconds ; then an angle is expressed by the number of degrees, minutes, seconds,... | |
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