Books Books 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. The First Six Books: Together with the Eleventh and Twelfth - Page 483
by Euclid - 1781 - 520 pages ## Cyclopedia of Architecture, Carpentry, and Building: A General Reference ...

Architecture - 1917
...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,... ## 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... ## 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... ## 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... ## The New International Encyclopædia, 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... 