| Ezra Otis Kendall - Astronomy - 1845 - 406 pages
...quadrant or 90° from all points in the 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"... | |
| Charles Davies - Arithmetic - 1846 - 399 pages
...required ; and so of others. DIVISION OF THE CIRC1E 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... | |
| Anthony Nesbit - Plane trigonometry - 1847 - 426 pages
...certain point within it, called the centre. 39. 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... | |
| John Bonnycastle - Geometry - 1848 - 288 pages
...being always to be read in the middle. CD B *47. 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 so on. 48. The measure of any right-lined angle is an arc of a circle contained between the two... | |
| Rufus Putnam - Arithmetic - 1849 - 404 pages
...and a semicircle ; as, the surface к FH К. 45. 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. Hence, a semicircle contains 180 degrees, and... | |
| Daniel Adams - Arithmetic - 1849 - 142 pages
...sixth part of a circle. Thus, AFB, BFC, and CFD, are sextants. 10. The circumference of every circle is **divided into 360 equal parts, called Degrees; each degree into 60 equal parts, called Minutes** ; and each minute into 60 equal parts, called Seconds. 11. Degrees, minutes, and seconds, are marked... | |
| Charles Davies - Geometry - 1850 - 218 pages
...Definitions. 28. The circumference of a circle is used for the measurement of angles. For this purpose it is **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, minutes, and seconds are marked thus... | |
| Charles Davies - Arithmetic - 1850 - 412 pages
...required ; and so of others. DIVISION OF THE 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... | |
| Daniel Adams - Measurement - 1850 - 144 pages
...part of a circle. Thus, AFB, BFC, and CJRD, are sextants. 10. The circumference of every circle is **divided into 360 equal parts, called Degrees ; each degree into 60 equal parts, called Minutes** ; and each minute into 60 equal parts, called Seconds. 11. Degrees, minutes, and seconds, are marked... | |
| Charles Davies - Geometry - 1850 - 236 pages
...Definitions. 28. The circumference of a circle is used for the measurement of angles. For this purpose it is **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, minutes, and seconds are marked thus... | |
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