The radius of a sphere is a straight line drawn from the centre to any point of the surface ; the diameter or axis is a line passing through this centre, and terminated on both sides by the surface. Elements of Geometry and Trigonometry - Page 168by Adrien Marie Legendre - 1837 - 359 pagesFull view - About this book
| 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... | |
| 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... | |
| 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 Kiddle - Astronomy - 1870 - 296 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. 35. GREAT 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
...from a point within, called the centre. The bounding line is called the circumference. 2. A RADIUS **is a straight line drawn from the centre to any point of the** circumference. 3. A DIAMETER is a straight line drawn through the centre and terminating in the circumference.... | |
| 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.)... | |
| Henry Kiddle - Astronomy - 1870 - 194 pages
...straight line Hrawn through the centre, and terminated both ways by the surface of the sphere. 32. Tlie **Radius of a sphere is a straight line drawn from the centre to any point of the surface.** 33. Circles drawn on the surface of a sphere are either Great Circles or Small Circles. 34. Great Circles... | |
| Benjamin Greenleaf - Geometry - 1873 - 202 pages
...be formed by the revolution of a semicircle, DAE, about its diameter, DE, which remains fixed. 329. **The Radius of a sphere is a straight line drawn from the** center to any point in the surface, as the line C B. BOOK VI. Hence, all the radii of a sphere are... | |
| Henry Bartlett Maglathlin - Arithmetic - 1873 - 362 pages
...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... | |
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