 | Joseph Emerson Worcester - 1844 - 356 páginas
...equator. 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 secotuls. They are marked thus, 23° 88' 16"; ie 23 degrees, 28 minutes, and 16 seconds. The Less Circles... | |
 | Ezra Otis Kendall - 1845 - 404 páginas
...circumference of that circle. Every circle is considered as divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ;...and each minute into 60 equal parts, called seconds. They are marked 0 ' " — thus: 10° 2' 20" — which is read ten degrees, two minutes, and twenty... | |
 | Nathan Scholfield - 1845 - 542 páginas
...is supposed to be divided into 360 equal parts, called degrees, and each of those degrees is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds ; and so on, to thirds, fourths, &c. These divisions are designated by the following characters, 0 ' " '"... | |
 | Nathan Scholfield - 1845 - 244 páginas
...is supposed to be divided into 360 equal parts, called degrees, and each of those degrees is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds ; and so on, to thirds, fourths, &c. These divisions are designated by the following characters, ° ' " '"... | |
 | Scottish school-book assoc - 1845 - 444 páginas
...supposed to be divided into 300 equal parts, called degrees, and each degree is supposed to be divided into 60 equal parts, called minutes, and each minute into 60 equal parts, called seconds. Degrees, minutes, and seconds, are distinguished by the following marks : — 7° 3' 24", which is... | |
 | Charles Davies - 1846 - 370 páginas
...CIRCLE MEASURE OF TIME. 40. 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. For astronomical purposes, the circumference of the circle is also supposed to be divided into 12 equal... | |
 | Henry Hopwood - 1846 - 250 páginas
...English mathematicians, to be 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. Degrees are marked (°), minutes ('), and seconds ("). These degrees vary in length according to the... | |
 | Charles Davies - 1846 - 254 páginas
...angles. 26. How is it divided? It 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 degrees, minutes, and seconds, are marked thus, °, ', " ; and 9° 18' 10", are read, 9 degrees,... | |
 | James Robinson (of Boston.) - 1847 - 304 páginas
...circumference for its arc, and the diameter for its chord. The half circle FGH is a semicircle. 45. The circumference of every circle is supposed to be...and each minute into 60 equal parts, called seconds. Hence, a semicircle measures 180 degrees, and a quadrant 90 degrees. 46. The measure of an angle is... | |
 | Anthony Nesbit - 1847 - 492 páginas
...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. 40. The diameter of a circle is a right line drawn through the centre, and terminating in the circumference... | |
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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. 
