| Gerardus Beekman Docharty - Geometry - 1867 - 474 pages
...surface described by the motion of the curve will have all its points equally distant from the centre. 2. **The radius of a sphere is a straight line drawn from the centre to any point** on the surface. The diameter or axis of a sphere is a straight line drawn through the centre, and terminated... | |
| Benjamin Greenleaf - 1868 - 338 pages
...formed by the revolution of a semicircle, DAE, about its diameter, DE, which remains fixed. 498. Tho **RADIUS of a sphere is a straight line drawn from the centre to any point in** .surface, as the line C B. The DIAMETER, or Axis, of a sphere is a line passing through the centre,... | |
| Henry Kiddle - Astronomy - 1868 - 300 pages
...the centre. through the centre, and terminated both ways by the surface of the sphere. 33. The EADIUS **of a sphere is a straight line drawn from the centre to any point** of the surface. 34. Circles drawn on the surface of a sphere are either GREAT CIRCLES or SMALL CIRCLES.... | |
| Isaac Todhunter - Measurement - 1869 - 312 pages
...every point of its surface equally distant from a certain point, called the centre of the sphere. A **radius of a sphere is a straight line drawn from the centre to** the surface. A diameter of a sphere is a straight line drawn through the centre, and terminated both... | |
| Horatio Nelson Robinson - 1869 - 276 pages
...it is that portion of the sphere which is generated by a sector of the 'generating semicircle. 21. **The Radius of a Sphere is a straight line drawn from the** center to any point in the surface; and the diameter is a straight line drawn through the center, and... | |
| Henry Bartlett Maglathlin - Arithmetic - 1869 - 332 pages
...curved surface, all points of which are equally distant from a point within called the center. 429. **The RADIUS of a sphere is a straight line drawn from the** center to any point in the surface. 430. The DIAMETER of a sphere is a straight line drawn through... | |
| Henry Kiddle - Astronomy - 1870 - 284 pages
...centron, the centre. through the centre, and terminated both ways by the surface of the sphere. 33. **The RADIUS of a sphere is a straight line drawn from the centre to any point** of the surface. 34. Circles drawn on the surface of a sphere are either GREAT CIRCLES or SMALL CIRCLES.... | |
| Elias Loomis - Geometry - 1871 - 302 pages
...described by the revolution of a semicircle A.DB, about its diameter AB, which remains unmoved. 2. **The radius of a sphere, is a straight line drawn from the** center to any point of the surface. The diameter, or axis, is a line passing through the center, and... | |
| Charles Davies - Geometry - 1872 - 464 pages
...the centre. A sphere may be generated by a semicircle revolving about its diameter as an axis. 13. A **RADIUS of a sphere is a straight line drawn from the centre to any point** of the surface. A DIAMETER is any straight line drawn through the centre and limited at both extremities... | |
| Edward Payson Jackson - Astronomical geography - 1872 - 154 pages
...24 t The Diameter of a Sphere is a straight line drawn from the center both ways to the surface. 25. **The Radius of a Sphere is a straight line drawn from the** center to the surface. 26. Great Circles of a Sphere are circumferences of the sphere. (See § 14.)... | |
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