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" 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. "
Observational Geometry - Page 108
by William Taylor Campbell - 1899 - 240 pages
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A Treatise on Spherics: Comprising the Elements of Spherical Geometry, and ...

Daniel Cresswell - Geometry - 1816 - 294 pages
...the surface, are equal to one another : (2.) And this point is called the Center of the Sphere. (3.) A Diameter of a Sphere is a straight line, drawn through the center, and terminated, both ways, by the surface of the sphere. (4.) COR. The center of a sphere bisects...
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Elements of Geometry

Adrien Marie Legendre - Geometry - 1819 - 208 pages
...thus described by the curve DAE will have all its points equally distant from the centre C. 438. 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 each...
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Elements of Geometry and Trigonometry: With Notes

Adrien Marie Legendre - Geometry - 1822 - 367 pages
...this movement, by the curve DAE, will have all its points equally distant from the centre C. II. 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...
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Elements of Geometry

Adrien Marie Legendre - Geometry - 1825 - 280 pages
...thus described by the curve DAE will have all its points equally distant from the centre C. 438. 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 each...
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Elements of Geometry...: Translated from the French for the Use of the ...

Adrien Marie Legendre, John Farrar - Geometry - 1825 - 280 pages
...thus described by the curve DAE will have all its points equally distant from the centre C. 438. 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 each...
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Elements of Geometry and Trigonometry

Adrien Marie Legendre - Geometry - 1836 - 359 pages
...any circular sector, as DCF or'FCII, describes- a solid, which is named a spherical sector. 10. 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...
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An Elementary Treatise on Plane and Solid Geometry

Benjamin Peirce - Geometry - 1837 - 216 pages
...generated l,y 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 the surface ; the diameter or axis is a line passing through the centre, and terminated...
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Elements of Geometry

Adrien Marie Legendre - Geometry - 1841 - 235 pages
...thus described by the curve DAE will have all its points equally distant from the centre C. 438. 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...
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Higher Geometry and Trigonometry: Being the Third Part of a Series on ...

Nathan Scholfield - Geometry - 1845 - 506 pages
...this movement, by the curve DAE, will have all its points equally distant from its centre C. 2. 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...
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A Series on Elementary and Higher Geometry, Trigonometry, and Mensuration ...

Nathan Scholfield - Conic sections - 1845
...this movement, by the curve DAE, will have all its points equally distant from its centre C. 2. 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...
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