 | Frederick Eugene Turneaure - 1909 - 456 sider
...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 minutes and each minute is divided into 60 equal parts called seconds. Angles and 180 arcs are usually measured by means of... | |
 | 1910 - 430 sider
...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 minutes and each minute is divided into 60 equal parts called seconds. Angles and arcs are usually measured by means of an... | |
 | Vincent C. Getty - 1912 - 92 sider
...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,... | |
 | Clement Mackrow - 1916 - 766 sider
...right angle is supposed to be divided into 90 equal parts, each of which parts is termed a degree ; each degree is divided into 60 equal parts called minutes, and each minute is divided into 60 equal parts called seconds. One degree 16 minutes 15 seconds or 1 a •* s 1° 16'... | |
 | Thomas J. Foster - 1916 - 1230 sider
...the angle. For measuring angles, the circumference is divided into 360 equal parts, called degrees; each degree is divided into 60 equal parts called minutes; and each minute is divided into 60 equal parts called seconds. Divisions smaller than a second are expressed in decimal... | |
 | Eugene Herz, Mary G. Brants - 1920 - 340 sider
...as one 25,000 miles in length. For making the more accurate measurements in surveying and astronomy each degree is divided into 60 equal parts called minutes, and each minute is divided into 60 equal parts called seconds. Exercise 4 — Oral. 1. Draw a circle. How many degrees... | |
 | 1921 - 488 sider
...angles is necessary for their solution. The circle is divided into 360 equal parts called degrees; each degree is divided into 60 equal .parts called minutes; and each minute is divided into 60 equal parts called seconds. When the circle is divided into four equal parts, each... | |
 | Holbrook Lynedon Horton - 1999 - 706 sider
...into 360 equal parts called degrees; so that the angle which each part subtends is equal to a degree. Each degree is divided into 60 equal parts called minutes and each minute is divided into 60 equal parts called seconds. ln the circular system of measure the unit is the radian.... | |
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The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, etc. 
