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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. "
A Series on Elementary and Higher Geometry, Trigonometry, and Mensuration ... - Page 7
by Nathan Scholfield - 1845
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Plane and Solid Geometry: To which is Added Plane and Spherical Trigonometry ...

George Roberts Perkins - Geometry - 1860 - 468 pages
...described in this movement by the curve DAE will have all its points equally distant from the centre C. 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...
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Elements of Geometry and Trigonometry: With Practical Applications

Benjamin Greenleaf - Geometry - 1862 - 520 pages
...be formed by the revolution of a semicircle, DAE, about its diameter, DE, which remains fixed. 498. The 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,...
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Elements of Plane and Spherical Trigonometry: With Practical Applications

Benjamin Greenleaf - Geometry - 1861 - 628 pages
...be Conned by the revolution of a semicircle, DAE, about its diameter, DE, which remains fixed. 498. The 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,...
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Elements of Geometry and Trigonometry

Adrien Marie Legendre - Geometry - 1863 - 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....
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Elements of Geometry: With Practical Applications to Mensuration

Benjamin Greenleaf - Geometry - 1863 - 506 pages
...be formed by tho revolution of a semicircle, DAE, about its diameter, DE, which remains fixed. 498. The RADIUS of a sphere is a straight line drawn from the center to any point in surface, as the line C B. The DIAMETER, or Axis, of a sphere is a line passing...
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Elements of Geometry and Trigonometry;: With Practical Applications

Benjamin Greenleaf - Geometry - 1863 - 502 pages
...be formed by the revolution of a semicircle, DAE, about its diameter, DE, which remains fixed. 498. The RADIUS of a sphere is a straight line drawn from the center to any point in surface, as the line C B. The DIAMETER, or Axis, of a sphere is a line passing...
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Elements of Geometry, and Plane and Spherical Trigonometry: With Numerous ...

Horatio Nelson Robinson - Conic sections - 1865 - 472 pages
...Or, it is that portion of the sphere which is generated by a sector of the generating semicircle. 2L 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,...
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Elements of Geometry: With Practical Applications to Mensuration

Benjamin Greenleaf - Geometry - 1866 - 328 pages
...be formed by the revolution of a semicircle, DAE, about its diameter, DE, which remains fixed. 498. The 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,...
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Elements of Plane and Solid Geometry: And of Plane and Spherical ...

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...
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A New Manual of the Elements of Astronomy, Descriptive and Mathematical ...

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. 35. GREAT CIRCLES...
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