 Every circumference is regarded as being divided into 360 equal parts, called degrees. Each degree is divided into 60 equal parts, called minutes, and each minute into 60 seconds. These divisions are indicated by the marks ° ' ". Thus 28 degrees, 17...  Plane and Spherical Trigonometry - Page 11by Levi Leonard Conant - 1909 - 222 pagesFull view - About this book
 | Nathaniel Bowditch - Nautical astronomy - 1916 - 912 pages
...whole circle, as CAG. All circles are supposed to have their circumferences divided into 360 ecjual parts, called degrees; each degree is divided into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds; an arc is measured by the number of degrees, minutée, and seconds... | |
 | Nathaniel Bowditch - 1920 - 840 pages
...part of a whole circle, as CAG. All circles are supposed to have their circumferences 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; an arc is measured by the number of degrees, minutes, and seconds... | |
 | Harmon Bay Niver - Geography - 1922 - 376 pages
...located. How Circles are Divided. Every circle, no 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,... | |
 | Nathaniel Bowditch - Nautical astronomy - 1931 - 866 pages
...as GAG. All circles are supposed to have their circumferences divided into 360 equal parts, cal.ed degrees; each degree is divided into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds; an arc is measured by the number of degrees, minutes, and seconds... | |
 | 280 pages
...right angle. This however is an inconvenient unit on account of its size. A right angle is therefore divided into 90 equal parts called Degrees. Each degree...into 60 equal parts called Minutes, and each minute into 60 equal parts called Seconds. This system of measurement is called the Sexagesimal system. The... | |
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