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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 - Page 168
by Adrien Marie Legendre - 1837 - 359 pages

## Plane and Solid Geometry

Arthur Schultze, Frank Louis Sevenoak - Geometry - 1902 - 370 pages
...surface, all the points of which are equally distant from a point within called the center. 672. DEF. The radius of a sphere is a straight line drawn from the center to any point in the surface. 673. DEF. The diameter of a sphere is a straight line passing through...

## Solid Geometry, Volumes 6-9

George Albert Wentworth - Geometry, Solid - 1902 - 246 pages
...be generated by the revolution of a semicircle ACB about its diameter AB as an axis. B 739. DEF. A radius of a sphere is a straight line drawn from the centre to the surface. A diameter of a sphere is a straight line passing through the centre and limited by the...

## Cyclopedia of Engineering; a Complete Manual of Steam and Machine ..., Volume 4

1902
...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...

## Elementary School Mathematics by Grades: Arithmetic, geometry, and algebra ...

William Estabrook Chancellor - Arithmetic - 1902 - 178 pages
...straight line passing through the center of the sphere, and terminated at both ends by the surface. The radius of a sphere is a straight line drawn from the center to any point in the surface. To find the surface of a sphere : 1. Find the surface of a sphere...

## A Text-book of Euclid's Elements for the Use of Schools, Book 1

Euclid - Euclid's Elements - 1904 - 456 pages
...certain point within it to the surface are equal : this point is called the centre of the sphere. A radius of a sphere is a straight line drawn from the centre to the surface. EUCLIUS ELEMENTS. 23. A right cylinder is a solid figure described by the revolution of...

## Plane and Solid Geometry

George Albert Wentworth - Geometry - 1904 - 473 pages
...may be generated by the revolution of a semicircle ACB about its diameter AB as an axis. 739. DBF. A radius of a sphere is a straight line drawn from the centre to the surface. A diameter of a sphere is a straight line passing through the centre and limited by the...

## Modern Engineering Practice: A Reference Library..., Volume 11

American School (Chicago, Ill.) - Engineering - 1906 - 582 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 13 center to the surface. The diameter is a straight line drawn through the center and having its extremities...

## Plane and Solid Geometry

Isaac Newton Failor - Geometry - 1906 - 418 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...