| Edward Brooks - Arithmetic - 1895 - 426 pages
...the circumference is called a quadrant. 241. For the purpose of measuring angles the circumference is **divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes;** each minute into 60 equal parts, called seconds. 242. Any angle having its vertex at the centre is... | |
| George D. Pettee - Geometry, Plane - 1896 - 272 pages
....-.theirlimits=J 175. Sen. Both the circumference of a circle and the angular space about the centre are **divided into 360 equal parts called degrees, each...60 equal parts called minutes, and each minute into** CO equal parts called seconds. Since central angles vary as their intercepted arcs, any central angle... | |
| Edward Cornelius Toune, Graeme Mercer Adam - 1897 - 692 pages
...are, in fact, measured in this way, that is, on the circumference of a circle. A circle is conceived **to be divided into 360 equal parts, called degrees ; each degree into 60** minutes ; each minute into 60 seconds. Thus, when you have swung this strip of paper one-twelfth of... | |
| Self-culture - 1897 - 592 pages
...are, in fact, measured in this way, that is, on the circumference of a circle. A circle is conceived **to be divided into 360 equal parts, called degrees ; each degree into 60** minutes ; each minute into 60 seconds. Thus, when you have swung this strip of paper one-twelfth of... | |
| International Correspondence Schools - Mining engineering - 1900 - 730 pages
...circumference being at the vertex of the angle. For measuring angles, the circumference is divided into :i60 **equal parts. called degrees; each degree into 60 equal parts called minutes.** A quadrant is one-fourth the circumference of a circle, or 90°. The complement of an arc is 90° minus... | |
| Henry Sinclair Hall - 1908 - 286 pages
...which it is perpendicular to AB. (ii) All right angles are equal. A right angle is divided into 90 **equal parts called degrees (°) ; each degree into 60 equal parts called minutes** (') ; each minute into 60 equal parts called seconds ("). In the above figure, if OC revolves about... | |
| Charles H. Gleason - Arithmetic - 1910 - 536 pages
...scale of J in. to 1 ft. MEASUREMENT OF ANGLES 324. The circumference of every circle, large or small, **is supposed to be divided into 360 equal parts, called degrees (°); each degree into 60** minutes ('); and each minute into 60 seconds ("). Thus: the circumference of the circle ABCD = 360°.... | |
| Frederick Thomas Hodgson - Carpentry - 1913 - 1208 pages
...materially in understanding other problems. The circumference of every circle is measured by being **supposed to be divided into 360 equal parts, called degrees; each degree** containing 60 minutes, a smaller division, and each minute into 60 seconds, a still smaller division.... | |
| Frederick Thomas Hodgson - Carpentry - 1917 - 392 pages
...materially in understanding other problems. The circumference of every circle is measured by being **supposed to be divided into 360 equal parts, called degrees; each degree** containing 60 minutes, a smaller division, and each minute into 60 seconds, a still smaller division.... | |
| Frederick Thomas Hodgson - Carpentry - 1917 - 390 pages
...materially in understanding other problems. The circumference of every circle is measured by being **supposed to be divided into 360 equal parts, called degrees; each degree** containing 60 minutes, a «4 smaller division, and each minute into 60 seconds, a still smaller division.... | |
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