| International Correspondence Schools - 1899
...the unknown parts from the given parts is called the solution of the triangle. 78. In trigonometry, **the circumference of every circle is supposed to be divided into 360 equal parts, called degrees** ; every degree is subdivided into 60 equal parts, called minutes; and every minute is again divided... | |
| International Correspondence Schools - 1900
...the unknown parts from the given parts is called the solution of the triangle. 741. In Trigonometry, **the circumference of every circle is supposed to be divided into 360 equal parts, called degrees** ; every degree is subdivided into 60 equal parts, called minutes, and every minute is again divided... | |
| International Correspondence Schools - 1900 - 637 páginas
...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... | |
| American School (Lansing, Ill.) - 1902 - 72 páginas
...degrees is measured by ^ of the circumference. 185. For accurate measurement each degree is divided **into 60 equal parts called minutes and each minute into 60 equal parts** ('ailed seconds. The symbols of degrees, minutes and seconds are °, ', ", respectively. To express... | |
| American School (Chicago, Ill.) - 1903
...degrees is measured by ^ of the circumference. 185. For accurate measurement each degree is divided **into 60 equal parts called minutes and each minute into 60 equal parts called seconds.** The symbols of degrees, minutes and seconds are °, ', ", respectively. To express 23 degrees, 47 minutes... | |
| Wilbur Fisk Nichols - 1903
...o'clock, in what time will the hands of a clock be at right angles to each other ? 1. For convenience, **every circle is supposed to be divided into 360 equal parts called degrees.** 2. By means of an instrument called a protractor any angle can be measured. 3. From cardboard cut out... | |
| Walter Nelson Bush, John Bernard Clarke - 1905 - 355 páginas
...theorem may be stated thus : A central angle is measured by its intercepted arc. The circumference is **divided into 360 equal parts, called degrees ; each...and each minute into 60 equal parts, called seconds.** For brevity, an angle measured by an arc of 1° is called an angle of 1° ; etc. NOTE. — This division... | |
| John Marvin Colaw, Frank Williamson Duke - 1906 - 400 páginas
...passing around the earth on its surface ? 444. In measuring circumferences, each degree is divided in **60 equal parts, called minutes, and each minute into 60 equal parts, called seconds.** In this measure, degrees, minutes, and seconds are written with symbols. Thus, 3 degrees, 25 minutes,... | |
| Matthew Fontaine Maury - 1906 - 225 páginas
...equally ? which unequally ? Examine the edges of the pieces ; which are great circles ? Small circles ? **Every circle is supposed to be divided into 360 equal parts called degrees,** marked (°). Each degree is divided into tiO minutes, marked ('), and each minute into 60 seconds,... | |
| Sidney Luxton Loney - 1905 - 290 páginas
...inconvenient unit of measurement on account of its size. We therefore subdivide a right angle into 90 **equal parts called degrees, each degree into 60 equal...and each minute into 60 equal parts called seconds.** The symbols used for a degree, a minute, and a second are 1°, 1', and 1". Thus 10° 11' 12" means... | |
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