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Bøker Bok 141150 av 188The circumference of every circle is supposed to be divided into 360 equal parts,...
" 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, &c. "
Trigonometry, Plane and Spherical: With the Construction and Application of ... - Side 5
av Thomas Simpson - 1810 - 125 sider
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Harper's School Geography

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...
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The Field Engineer: a Handy Book of Practice in the Survey, Location, and ...

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"...
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A Grammar Shcool Arithmetic

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...
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Elements of Geometry and Trigonometry: With Applications in Mensuration

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...
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The American Practical Navigator: Being an Epitome of Navigation and ...

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...
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Elementary Synthetic Geometry of the Point, Line and Circle in the Plane

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. —...
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The Field Engineer: A Handy Book of Practice in the Survey, Location, and ...

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"...
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The Carpet-dealer's Guide: A Manual of Practical Information on the Art of ...

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....
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Mensuration

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.,...
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The Elementary Arithmetic: Oral and Written

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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