| 1885 - 136 sider
...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. are marked... | |
| William Findlay Shunk - 1886 - 325 sider
...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° 221 33"... | |
| George Albert Wentworth - 1886 - 372 sider
...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 to an angle... | |
| Charles Davies - 1886 - 324 sider
...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... | |
| Nathaniel Bowditch - 1888 - 647 sider
...figure CAG. Nate. All circles, whether great or small, are supposed to have their circumference divided **into 360 equal parts, called degrees ; and each degree...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 contains... | |
| Nathan Fellowes Dupuis - 1889 - 294 sider
...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 - 1890 - 339 sider
...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° 22' 33"... | |
| John H. Macke - 1891 - 228 sider
...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. Example.... | |
| William Shaffer Hall - 1893 - 62 sider
...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...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 (Ww. Geom.,... | |
| Albert Newton Raub - 1894 - 192 sider
...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, s. 12 signs... | |
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