 | James Bates Thomson - Arithmetic - 1882 - 416 pages
...sphere is a straight line drawn through its center and terminated at both ends by the surface. 849. The Radius of a sphere is a straight line drawn from its center to any point in its surface. 850. To find the Surface of a Sphere, the Circumference and Diameter... | |
 | Arthur Latham Baker - Geometry, Solid - 1893 - 150 pages
...be considered as generated by the revolution of a semicircle about its diameter as an axis. 214. A radius of a sphere is a straight line drawn from its centre to its surface. 215. A diameter of a sphere is a straight line passing through the centre' and limited by the surface.... | |
 | James Bates Thomson - 1894 - 342 pages
...its center and terminated at both ends by the surface. 677. A Hemisphere is one-half a sphere. 678. The Radius of a sphere is a straight line drawn from its center to any point in its surface. 679. To find the Surface of a Sphere, the Circumference and Diameter... | |
| |
The Diameter of a sphere is a straight line drawn through its center and terminated at both ends by the surface. 