| Geography - 1885 - 136 pages
...Every circle is divided into 360 equal parts called degrees ; each degree is divided И" m' ... into GO **equal parts called minutes; and each minute into 60 equal parts called** seconds. The smaller the circle, the short- 18g er are the degrees. Degrees DECREES OF THE CIRCLE.... | |
| George Albert Wentworth - Arithmetic - 1886 - 372 pages
...about a point in a plane is divided into 360 equal parts, called degrees. Each degree is subdivided **into 60 equal parts, called minutes, and each minute into 60 equal parts, called** seconds. Likewise the circumference of a circle is divided into 3GO equal arcs, each corresponding... | |
| Charles Davies - Geometry - 1886 - 324 pages
...for the measure. ment of angles. For this purpose it is divided into 360 equal parts called degrees, **each degree into 60 equal parts called minutes, and each minute into 60 equal** pans called second s. The degrees, minutes, and seconds are marked thus ° ' " ; and 9° 18' 16", are... | |
| William Findlay Shunk - Railroad engineering - 1886 - 325 pages
...inclndes one-quarter of the circle, and is the measure of a right angle. Each degree is further divided **into 60 equal parts called minutes, and each minute into 60 equal parts called** seconds. Degrees, minutes, and seconds are denoted by the symbols °, 1, ": thus the expression 7°... | |
| Nathaniel Bowditch - Nautical astronomy - 1888 - 647 pages
...CAG. Nate. All circles, whether great or small, are supposed to have their circumference divided into **360 equal parts, called degrees ; and each degree...minutes ; and each minute into 60 equal parts, called** seconds ; and so on into thirds, fourths, Jtc. ; and an arc is said to be of as many degrees as it... | |
| Nathan Fellowes Dupuis - Geometry - 1889 - 294 pages
...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' 42f . This is denoted as Theorem.... | |
| William Findlay Shunk - Railroad engineering - 1890 - 339 pages
...includes one-quarter of the circle, and is the measure of a right angle. Each degree is further divided **into 60 equal parts called minutes, and each minute into 60 equal parts called** seconds. Degrees, minutes, and seconds are denoted by the symbols °, ', ": thus the expression 7°... | |
| John H. Macke - Carpet laying - 1891 - 228 pages
...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 the circumference by 3.1416.... | |
| William Shaffer Hall - Measurement - 1893 - 62 pages
...angle is taken as the unit. A convenient unit is a right angle. The right angle is divided into 90 **equal parts called degrees, and each degree into 60...minutes, and each minute into 60 equal parts called** seconds. Angles at the centre of a circle have the same ratio as the arcs which are subtended by them... | |
| Albert Newton Raub - Arithmetic - 1894 - 192 pages
...AD, is called a Diameter. 129. Every circumference is divided into 360 equal parts, called degrees; **each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called** seconds. TABLE. 60 seconds (") =1 minute, (' ). 60 minutes = 1 degree, ( ° ). 30 degrees = 1 sign,... | |
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