| American School (Lansing, Ill.) - 1906
...degrees, which means that it is •£fa = I of a circumference. In order to obtain accurate measurements **each degree is divided into 60 equal parts called minutes and each minute is divided into** 6O equal parts called seconds. Angles and arcs are usually measured by means of an instrument called... | |
| 1908
...•gfa = | of a circumference. In order to obtain accurate measurements each degree is divided into GO **equal parts called minutes and each minute is divided into 60 equal parts called seconds.** Angles and arcs are usually measured by means of an instrument called a protractor which has already... | |
| Levi Leonard Conant - 1909 - 183 σελίδες
...unit of measure is the right angle. The right angle is divided into 90 equal parts, called degrees; **each degree is divided into 60 equal parts, called...minute is divided into 60 equal parts, called seconds.** The symbols 1°, 1', 1", are employed to denote one degree, one minute, and one second respectively.... | |
| Frederick Eugene Turneaure - 1909
...degrees, which means that it is ^fo = ^ of a circumference. In order to obtain accurate measurements **each degree is divided into 60 equal parts called...minute is divided into 60 equal parts called seconds.** Angles and 180 arcs are usually measured by means of an instrument called a protractor which has already... | |
| Levi Leonard Conant - 1909 - 222 σελίδες
...unit of measure is the right angle. The right angle is divided into 90 equal parts, called degrees; **each degree is divided into 60 equal parts, called...minute is divided into 60 equal parts, called seconds.** The symbols 1°, 1', 1", are employed to denote one degree, one minute, and one second respectively.... | |
| 1909
...5^ = J of a circumference. In older to obtain accurate measurements each degree is divided into GO **equal parts called minutes and each minute is divided into 60 equal parts called seconds.** Angles and arcs are usually measured by means of an instrument called a protractor which has already... | |
| 1910
...degrees, which means that it is •j^j- = | of a circumference. In order to obtain accurate measurements **each degree is divided into 60 equal parts called...minute is divided into 60 equal parts called seconds.** Angles and arcs are usually measured by means of an instrument called a protractor which has already... | |
| Vincent C. Getty - 1912 - 64 σελίδες
...or in eighths, each part would contain 45 degrees, etc. In order to obtain very accurate dimensions, **each degree is divided into 60 equal parts called minutes, and each minute is** again divided into 60 equal parts called seconds. Instead of using words to express degrees, minutes,... | |
| Glenn Moody Hobbs - 1912
...angles, some device like a protractor, Fig. 14, showing degrees and fractions of degrees, is necessary. **Each degree is divided into 60 equal parts called minutes, ', and each minute** into 60 equal parts called seconds, ". Thus to represent an angle of 23 degrees, 47 minutes, and 9... | |
| John William Hopkins, Patrick Healy Underwood - 1912
...convenient to use arc units. The whole circumference is divided into 360 equal parts called degrees. **Each degree is divided into 60 equal parts called minutes, and each minute** into 60 equal parts called seconds. As one degree is ^^ of any circumference, a degree on one circle... | |
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