 For this purpose 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°...  First Lessons in Geometry: With Practical Applications in Mensuration, and ... - Page 20by Charles Davies - 1840 - 252 pagesFull view - About this book
 | Charles Davies - Geometry - 1850 - 218 pages
...quarter of the circumference, as AC, is called a quadrant. D D BC D BC B ~BC GEOMETRY. Definitions. 28. The circumference of a circle is used for the measurement...divided into 360 equal parts called degrees, each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. The degrees,... | |
 | Charles Davies - Geometry - 1850 - 238 pages
...semicircumferen.ee ; and one quarter of the circumference, as AC, is called a quadrant. Definitions. 28. The circumference of a circle is used for the measurement...divided into 360 equal parts called degrees, each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. The degrees,... | |
 | Anna Cabot Lowell - Astronomy - 1850 - 378 pages
...be divided into 360 equal arcs, called degrees, and marked thus, (°). For instance, 60° is read 60 degrees. Each degree is divided into 60 equal parts called minutes, and marked ('). Each minute is divided into 60 equal parts called seconds, and marked ("). § 10. As all... | |
 | Charles Davies - Arithmetic - 1851 - 178 pages
...th« heavenly bodies. 2. How is every circle supposed to be divided ? Every circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divided into 60 minutes, and each minute into 60 seconds. Solid, or Cubic Measure. 1. For what is Solid, or Cubic Measure... | |
 | Charles Davies - Geometry - 1886 - 340 pages
...semicircumference ; and one quarter of the circumference, as AC is called a quadrant BC BC Definitions. 28. The circumference of a circle is used for the measurement...divided into 360 equal parts called degrees, each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. The degrees,... | |
 | Charles Davies - 1852 - 344 pages
...in measuring the motions of the heavenly bodies. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divided into 60 minutes, and each minute into 60 seconds. TABLE. 1. How many seconds in 3 minutes ? In 4 ? In 5 ? 2.... | |
 | Thomas Kentish - Geometrical drawing - 1852 - 272 pages
...the end of the Uses of the Slide Rule. TRIGONOMETRY. THE circumference of a circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divided into 60 minutes; each minute into GO seconds; and so on. Degrees are marked with a small ° at the top of the... | |
 | Thomas Kentish - 1854 - 268 pages
...the end of the Uses of the Slide Rule. TRIGONOMETRY. THE circumference of a circle is supposed to be divided into 360 equal parts, called degrees. Each degree is divided into 60 minutes; each minute into 60 seconds ; and so on. Degrees are marked with a small ° at the top of... | |
 | Charles Davies, William Guy Peck - Mathematics - 1855 - 628 pages
...divided into four equal parts, each of which is called a quadrant ; each quadrant is divided into 90 equal parts, called degrees ; each degree is divided into 60 equal parts, called minutes; each minute into GO equal parts, called seconds, and so on according to the sexagesimal scale. See... | |
 | William Mitchell Gillespie - Surveying - 1856 - 478 pages
...with an entire circumference, described with the same radius. Every circumference is regarded as being divided into 360 equal parts, called degrees. Each degree is divided into 60 equal parts, called minutet, and each minute into 60 seconds. These divisions are indicated by the marks ° ' ". Thus 28... | |
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