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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.
Elements of Surveying: Including a Description of the Instruments and the ... - Page 32
by Charles Davies - 1837 - 249 pages

## 1. Mathematical Tables

Edward Vermilye Huntington, Louis Albert Fischer - Engineering - 1916 - 196 pages
...(360 degrees = 1 revolution.) 1 degree = 1° = Ую of a right angle. The degree is usually divided into 60 equal parts called minutes ('), and each minute into 60 equal parts called seconds ("); while the second is subdivided decimally. But for many purposes it is more convenient to divide...

## Mechanical Engineers' Handbook

Lionel Simeon Marks - Mechanical engineering - 1916 - 1918 pages
...MEAAUKE. (360 degrees - 1 revolution.) 1 degree Ie ' » of a right angle. The degree is usually divide«! into 60 equal parts called minutes ('), and each minute into 60 equal parts called seconds ("); while the second is subdivided decimally. Rut for many purposes it is more convenient to divide...

## Mechanical Drawing: Instruction Paper, Part 2

Ervin Kenison - Mechanical drawing - 1916 - 44 pages
...ie, it is /A = 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. /esi I8O Fig. 67. Angular Measurement SOLIDS A solid has three dimensions — length, breadth, and...

## Standard Handbook for Mechanical Engineers

Mechanical engineering - 1916 - 1826 pages
...MEASURE. (360 degrees = 1 revolution.) 1 degree = 1° = Ho of a right angle. The degree is usually divided into 60 equal parts called minutes ('), and each minute into 60 equal parts called seconds ("); while the second is subdivided decimally. But for many purposes it is more convenient to divide...

## Cyclopedia of Architecture, Carpentry, and Building: A General ..., Volume 6

Architecture - 1917 - 550 pages
...ie, it is -^ =£ of a circumference. Li order to obtain accurate measurements each degree is divided into 60 equal parts called minutes and each minute into 60 equal parts called seconds. r:~ S7_ Angular Measurement /OS /so 39 SOLIDS A solid has three dimensions — length, breadth, and...

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

Heating - 1918 - 406 pages
...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 ..., Volume 2

Building - 1919 - 502 pages
...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....

## Complete Geography

Harmon Bay Niver - Geography - 1922 - 376 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....