 | Gustavus Sylvester Kimball - Business mathematics - 1911 - 444 pages
...which is a unit of some known length. 365. A sphere is a body bounded by a uniformly curved surface, all the points of which are equally distant from a point within, called the center. 366. To find the convex surface of any prism or cylinder. Rule. Multiply the perimeter... | |
 | Frederick Thomas Hodgson - 1917 - 696 pages
...revolution of 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... | |
 | Charles Austin Hobbs - Geometry, Solid - 1921 - 216 pages
...volume of a cone whose surface is n times as large? BOOK IX THE SPHERE A sphere is a closed surface, all points of which are equally distant from a point within called the centre. Accordingly, the locus of a point in space at a given distance from a given point is a sphere. NOTE.... | |
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CIRCLE is a plane figure bounded by a curved line, all the points of which are equally distant from a point within called the centre; as the figure ADB E. 
