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A sphere is a solid bounded by a surface all points of which are equally distant from a point within called the centre.
Solid Geometry - Page 347
by John H. Williams, Kenneth P. Williams - 1916 - 162 pages

## Scribner's Engineers' and Mechanics' Companion: Comprising United States ...

J. M. Scribner - Mechanical engineering - 1849 - 264 pages
...an ellipse about either of its axes. 6. A sphere is a solid, terminated by a curved surface, all the points of which are equally distant from a point within, called the center. A sphere may be described by the revolution of a semicircle about a diameter. 7. A radius of a sphere...

## Elements of Geometry and Conic Sections

Elias Loomis - Conic sections - 1849 - 252 pages
...BOOK IX. SPHERICAL GEOMETRY. Definitions. 1. A sphere is a solid bounded by a curved surface, all the points of which are equally distant from a point within, called the center. The sphere may be conceived to be described by the revolution of a semicircle ADB, about its diameter...

## Elements of Geometry and Conic Sections

Elias Loomis - Conic sections - 1858 - 256 pages
...BOOK IX. SPHERICAL GEOMETRY Definitions. 1. A sphere is a solid bounded by a curved surface, all th« points of which are equally distant from a point within, called the center. The sphere may be conceived to be described by the revolution of a semicircle ADB, about its diameter...

## Bryant and Stratton's Commercial Arithmetic: In Two Parts. Designed for the ...

Emerson Elbridge White - Arithmetic (Commercial), 1861 - 1861 - 348 pages
...Ans. 9f cu. ft. nearly. SPHERES. ART. 181. A sphere is a solid bounded by a curved surface, all the points of which are equally distant from a point within called the center. The diameter or axis of a sphere is a line passing through the center, and terminated each way by the...

## Elements of Geometry and Conic Sections

Elias Loomis - Conic sections - 1861 - 254 pages
...SPHERICAL GEOMETRY Definitions. 1. A sphere is a solid bounded by a curved surface, all the Aroints of which are equally distant from a point within, called the center. The sphere may be conceived to be described by the revolution of a semicircle A.DB, about its diameter...

## Elements of Geometry and Trigonometry: With Practical Applications

Benjamin Greenleaf - Geometry - 1862 - 520 pages
...THE SPHEKE, AND ITS PR0PERTIES. DEFINITIONS. 497. A SPHERE is a solid, or volume, bounded by a curved surface, all points of which are equally distant from a point within, called the centre. The sphere may be conceived to be formed by the revolution of a semicircle, DAE, about...

## Elements of Plane and Spherical Trigonometry: With Practical Applications

Benjamin Greenleaf - Geometry - 1862 - 514 pages
...THE SPHERE, AND ITS PROPERTIES. DEFINITIONS. 497. A SPHERE is a solid, or volume, bounded by a curved surface, all points of which are equally distant from a point within, called the centre. The sphere may be conceived to be formed by the revolution of a semicircle, DAE, about...

## Elements of Plane and Spherical Trigonometry: With Practical Applications

Benjamin Greenleaf - Geometry - 1861 - 628 pages
...153. The CIRCUMFERENCE or PERIPHERY of a circle is its entire bounding line ; or it is a curved line, all points of which are equally distant from a point within called the centre. 154. A RADIUS of a circle is any straight line drawn from the centre to the circumference...