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The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.
A Treatise on Surveying: Containing the Theory and Practice : to which is ... - Page 33
by John Gummere - 1846 - 266 pages

## Sanitary, Heating and Ventilation Engineering: A General Reference ..., Volume 4

Heating - 1918
...ie, it is vVr = | of a circumference. In order to obtain accurate measurements each degree is divided into 60 equal parts called minutes and each minute into 60 equal parts called seconds. Fig.. 67. Angular Measurement SOLIDS A solid has three dimensions — length, breadth, and thickness....

## Carpentry and Contracting: A Practical Reference Work on Carpentry, Building ...

Building - 1919
...it is -sVir = i of a circumference. In order to obtain accurate measurements each degree is divided into 60 equal parts called minutes and each minute into 60 equal parts called seconds. Fig. 67. Angular Measurement SOLIDS A solid has three dimensions — length, breadth, and thickness....

## Mechanical Drawing

John Simpson Reid - Mechanical drawing - 1919 - 232 pages
...touches a circle without cutting it. 50. Cotangent is tangent of complement of arc. 51. Circumference of every circle is supposed to be divided into 360 equal parts termed Degrees; each degree into 60 minutes and each minute in 60 seconds. 52. Complement of an angle...

## The Manufacture of Pulp and Paper: A Textbook of Modern Pulp and ..., Volume 1

...the angular measure of angles, and the table of angular measure was given in Arithmetic. The entire circle is supposed to be divided into 360 equal parts called degrees, the abbreviation for which is (°) ; each degree is then divided into 60 equal parts called minutes,...

## Complete Geography

Harmon Bay Niver - Geography - 1922 - 327 pages
...matter what size it may be, 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. The Equator and the meridian circles are called great circles, because they divide the earth into hemispheres....

## The New International Encyclopędia, Volume 5

...the circumference of a circle is divided into 360 equal parts, called degrees; each degree into 00 equal parts, called minutes; and each minute into 60 equal parts, called seconds. Further divisions are better represented by decimal fractions. The circle ia also commonly divided...