| André Darré - 1872 - 226 pages
...equal parts into which the circumference of every circle is supposed to be divided are called degrees ; each degree is divided into 60 equal parts called minutes ; and each minute into 60 equal parts called seconds. Symbols are used to express degrees, minutes, and seconds. Thus... | |
| Clement Mackrow - 1879 - 558 pages
...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...minute is divided into 60 equal parts, called seconds. To express the measure of an angle in degrees and decimal parti of a degree. Ex. : To bring 24°, 16',... | |
| William Guy Peck - Astronomy - 1883 - 406 pages
...place is called a sidereal day. The sidereal day is divided into 24 equal parts called hours, each hour is divided into 60 equal parts called minutes, and...minute is divided into 60 equal parts called seconds. Time reckoned iu terms of these units is called sidereal time. The sidereal day, which is assumed to... | |
| Thomas Fenwick, Thomas Baker - Surveying - 1888 - 246 pages
...peri/phery divided into, or to con\ tain, 360 equal parts, called i degrees, — and those degrees -JB are divided into 60 equal parts, / called minutes, — and each minute is divided again into 60 equal parts, called seconds, &c. 3. Every circle AD, contains four right angles, at angles... | |
| Nathan Fellowes Dupuis - Geometry - 1889 - 370 pages
...right angle. For practical purposes the right angle is divided into 90 equal parts called degrees ; each degree is divided into 60 equal parts called minutes ; and each minute into 60 equal parts called seconds. 20 seconds and six-sevenths of a second, follows : — 51° 25'... | |
| John H. Macke - Carpet laying - 1891 - 244 pages
...practical purposes, the circumference of a circle 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. To find the diameter when the circumference is given. RULE. Divide... | |
| Sidney Luxton Loney - Plane trigonometry - 1893 - 534 pages
...the Sexagesimal system of measurement a right angle is divided into 90 equal parts called Degrees. Each degree is divided into 60 equal parts called Minutes, and each minute into 60 equal parts called Seconds. The symbols 1°, Г, and 1" are used to denote a degree, a minute,... | |
| John Tilden Prince - 1894 - 120 pages
...the North Temperate Zone ? What is its width in miles ? GEOMETRICAL EXERCISES AND MEASUREMENTS. 81 1. Each degree is divided into 60 equal parts called...minute is divided into 60 equal parts called seconds. Fill out the following table : — seconds ( ") = 1 minute (') — minutes = 1 degree (°) — degrees... | |
| Nathan Fellowes Dupuis - Geometry - 1894 - 313 pages
...right angle. For practical purposes the right angle is divided into 90 equal parts called degrees ; each degree is divided into 60 equal parts called minutes ; and each minute into 60 equal parts called seconds. 20 seconds and six-sevenths of a second, follows :— 51° 25'... | |
| John Tilden Prince - Arithmetic - 1895 - 358 pages
...miles ? 10. What is the width in degrees of the North Temperate Zone ? What is its length in miles ? 1. Each degree is divided into 60 equal parts called...minute is divided into 60 equal parts called seconds. Fill out the following table : — • seconds ( " ) = 1 minute ( ' ) — minutes = 1 degree (°) ~-... | |
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