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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.
Elements of Geometry and Trigonometry: With Notes - Page 176
by Adrien Marie Legendre - 1830 - 316 pages

## Cyclopedia of Drawing: Mechanical, architectural, pen and ink rendering ...

Drawing - 1906 - 424 pages
...by a curved surface, every point of which is equally distant from a point within called the center. The radius of a sphere is a straight line drawn from the 64 center to the surface. The diameter is a straight line drawn through the center and having its extremities...

## Cyclopedia of Drawing, Volume 1

American School (Lansing, Ill.) - Architectural drawing - 1906 - 432 pages
...by a curved surface, every point of which is equally distant from a point within called the center. The radius of a sphere is a straight line drawn from the 64 MECHANICAL DRAWING. 13 center to the surface. The diameter is a straight line drawn through the...

## Plane and Solid Geometry

Isaac Newton Failor - Geometry - 1906 - 431 pages
...sphere. A sphere may be generated by the revolution of a semicircle about its diameter as an axis. 746 The radius of a sphere is a straight line drawn from the center to any point of the surface. The diameter of a sphere is a straight line drawn through the center...

## Cyclopedia of Architecture, Carpentry and Building: A General Reference Work...

American School (Lansing, Ill.) - Architecture - 1907 - 360 pages
...by a curved surface, every point of which is equally distant from a point within called the center. The radius of a sphere is a straight line drawn from the center to the surface. The diameter is a. straight line drawn through the center and having its extremities...

## New Plane and Solid Geometry

Webster Wells - Geometry - 1908 - 338 pages
...bounded by a surface, all points of which are equally distant from a point within called the centre. A. radius of a sphere is a straight line drawn from the centre to the surface ; a diameter is a straight line drawn through the centre, having its extremities in the...

## Cyclopedia of Civil Engineering: A General Reference Work on ..., Volume 1

...by a curved surface, every point of which is equally distant from a point within called the center. The radius of a sphere is a straight line drawn from the center to the surface. The diameter is a straight line drawn through the center and having its extremities...

## Cyclopedia of Architecture, Carpentry and Building: Mechanical drawing ...

Architecture - 1909 - 466 pages
...by a curved surface, every point of which is equally distant from a point within called the center. The radius of a sphere is a straight line drawn from the 49 center to the surface. The diameter is a straight line drawn through the center and having its extremities...

## Cyclopedia of Carpentry and Contracting ...: Architectural drawing ...

Architectural drawing - 1910 - 434 pages
...by a curved surface, every point of which is equally distant from a point within called the center. The radius of a sphere is a straight line drawn from the center to the surface. The diameter is a straight line drawn through the center and having its extremities...