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
| George Roberts Perkins - Geometry - 1847 - 308 pages
...in this movement, by the curve DAE, witl have all its points equally distant centre C» from the 8. **The radius of a sphere* is a straight line drawn from the centre to any point** in, the surface ; the diameter, or axis, is a line passing through this centre, and terminated on both,... | |
| Benjamin Peirce - Geometry - 1847 - 150 pages
...generated by the revolution of a semicircle, DAE (fig. 177) about its diameter DE. 417. Definitions. **The radius of a sphere is a straight line drawn from the centre to** a point in tha Great and Small Circles. Poles. surface ; the diameter or axis is a line passing through... | |
| Charles William Hackley - Geometry - 1847 - 248 pages
...tant from the center O. The sector of a circle AOC at the same time generates a spherical sector. 2. **The radius of a sphere is a straight line drawn from the** center to any point on the surface. The diameter or axis of a sphere is a straight line drawn through... | |
| Charles Davies - Trigonometry - 1849 - 384 pages
...revolving round its diameter DE, describes the sphere; any circular sector, as DCF or FCH, describes a **10. The radius of a sphere is a straight line drawn...centre, and terminated on .both sides by the surface.** solid, which is named a spherical sector. All the radii of a sphere are equal; all the diameters are... | |
| Elias Loomis - Conic sections - 1849 - 252 pages
...diameter AB, which remains unmoved. 2. The radius of a sphere, i# 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 terminated each way by the surface. 3. It will be shown (Prop. I.), that every section... | |
| Anna Cabot Lowell - Astronomy - 1850 - 378 pages
...curved surface, all the points of which are equally distant from a point within called the centre. **The radius of a sphere is a straight line drawn from the centre to** a point in the surface ; the diameter, or axis, is a line passing through the centre, and terminated... | |
| Hugo Reid - 1850 - 156 pages
...circumference of the circle, passing through the centre to the opposite side. 55. The RADIUS of a circle, or **of a sphere, is a straight line drawn from the centre to** the surface of the sphere. or circumference of the circle. 56. All radii of the same circle, or same... | |
| Alexander Stewart - 1850 - 482 pages
...cireumference of the cirele, passing through the centre to the opposite side. The RADIUS of a cirele, or **of a sphere, is a straight line drawn from the centre to** the surface of the sphere, or cireumference of the cirele. All radii of the same cirele, or same sphere,... | |
| Adrien Marie Legendre - Geometry - 1852 - 436 pages
...the sphere, any circular sector, as DCF) or FCAj describes a solid, called a spherical sector. 11. **The radius of a sphere is a straight line drawn from...surface ; the diameter or axis is a line passing through** the centre, and terminated, on both sides, by the surface. All the radii of a sphere are equal ; all... | |
| James B. Dodd - Arithmetic - 1852 - 410 pages
...described by revolving a semicircle ACB about its diameter AB — this diameter remaining unmoved. **The radius of a sphere is a straight line drawn from the centre to any point of the surface** ; and a diameter is a straight line passing through the centre, and terminated b'oth ways by the surface.... | |
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