| Hugh Murray - Geography - 1839
...in diameter, and consequently nearly 24,870 miles in circumference. In geometry, the circumference **of every circle is supposed to be divided into 360 equal parts, called degrees;** and each of these into 60 equal parts, called minute?, and so on. A degree, therefore, of any circle... | |
| Basil Jackson - Leveling - 1842 - 187 pages
...circumference, is called a radius ; and all radii of the same circle are equal. 39. The circumference **of every circle is supposed to be divided into 360...equal parts, called degrees ,- each degree into 60** minutes; and each minute into 60 seconds. The fourth part of a circle is called a quadrant, and contains... | |
| William Grier - Mechanics, Applied - 1842 - 308 pages
...5 AO that which stands at the angular point is read in the middle. Thus, DAE. 57. The circumference **of every circle is supposed to be divided into 360 equal parts, called degrees;** and each degree into 60 minutes, each minute into 60 seconds, and so on. Hence a semicircle contains... | |
| Benjamin Greenleaf - Arithmetic - 1843 - 314 pages
..._J£ that which stands at the angular j^ ' point, is read in the middle. Thus, 56. The circumference **of every circle is supposed to be divided into 360 equal parts, called degrees** ; and each degree into 60 minutes, each minute into 60 seconds ; and so on. Hence a semicircle contains... | |
| Samuel Maunder - Encyclopedias and dictionaries - 1843 - 832 pages
...one foot in the centre and turning the other round to trace out the circumference. The circumference **of every circle is supposed to be divided into 360 equal parts, called degrees** and marked ° ; and each degree into 60 mi nutes, marked'. The word Circle is also used to describe... | |
| Enoch Lewis - Conic sections - 1844 - 228 pages
...of a semicircle, is called its supplement. Thus BHD is the supplement of AB. 10. The circumference **of every circle is supposed to be divided into 360...; each degree into 60 equal parts, called minutes;** each minute into 60 equal parts, called seconds, &c, Degrees, minutes and seconds are designated thus,... | |
| William Phillips, Robert Allan, Francis Alger - Mineralogy - 1844 - 662 pages
...angles is the number of degrees, minutes, &c. of which they consist. In measuring angles, the circle is **divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called** c* XXVI be intercepted by which meet at an minutes ; and each minute into 60 seconds : the divisions... | |
| Robert Griffith Hatfield - Architecture - 1845 - 304 pages
...Art. 27,) then each of the two angles is called a right angle. 131. — Definition. The circumference **of every circle is supposed to be divided into 360 equal parts, called degrees** ; hence a semi-circle contains 180 degrees, a quadrant 90, &c. o Fig. 96. 132. — Definition. The... | |
| Horatio Nelson Robinson - Arithmetic - 1845 - 288 pages
...used in calculating latitude and longitude, and also in measuring the motions of the heavenly bodies. **Every circle is supposed to be divided into 360 equal parts, called degrees.** TABLE. 60 seconds (") make 1 minute, . marked 60 minutes, 1 degree, ° 30 degrees 1 sign, s. 12 signs,... | |
| Conic sections - 1845
...position or direction, without regard to their magnitudes. For this purpose the circumference of the **circle 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... | |
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