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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

## Complete Arithmetic: Or Third Book of a Series of Mathematics

Andrew H. Baker - Arithmetic - 1878 - 193 pages
...through the centre and terminated at both ends by the surface. 3. A Ratlins is one-half the diameter, or a straight line drawn from the centre to any point of the surface. PROBLEMS. I. To find the surface of a sphere. The surface of a sphere is equal to the product of the...

## Course in Arithmetic: A Treatise in Three Parts, Complete in One Volume

Frederic William Bardwell - Arithmetic - 1878 - 154 pages
...sphere is a straight Hue passing through the center of a sphere, each end terminating in the surface The radius of a sphere is a straight line drawn from the center to the surface of the sphere. Problem. — Required to find the lateral surface of a triangular...

## National Arithmetic; Oral and Written: For Common and Graded Schools ...

Joseph Ficklin - Arithmetic - 1881 - 394 pages
...Diameter of a sphere is a straight line drawn through the centre, and terminated both ways by the surface. The Radius of a sphere is a straight line drawn from the centre to the surface. 633. The Volume of a solid is the amount of space it contains. 634. The Convex Surface...

## Fish's Arithmetic Number Two: Oral and Written, Upon the Inductive ..., Book 2

Daniel W. Fish - Arithmetic - 1883 - 352 pages
...straight line pass ing through the center of the sphere, and terminated at both ends by its surface. The radius of a sphere is a straight line drawn from the center to any point in the surface. PROBLEMS. 479. To find the convex surf, of a prism or cylinder....

## Fish's Arithmetic Number One[-two]: Oral and Written ..., Volume 2

Daniel W. Fish - Arithmetic - 1883
...straight line passing through the center of the sphere, and terminated at both ends by its surface. The radius of a sphere is a straight line drawn from the center to any point in the surface. PROBLEMS. 479. To und the convex surf, of a prism or cylinder....

## Elements of Geometry and Trigonometry from the Works of A.M. Legendre ...

Adrien Marie Legendre, Charles Davies - Geometry - 1885 - 512 pages
...from a point within, called the centre. The bounding line is called the circumference. 2. A RADIU8 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....

## Practical Work in Geography: For the Use of Teachers and Advanced Pupils ...

Henry McCormick - Geography - 1885 - 324 pages
...fixed point. Is it necessary in this definition to say that the "fixed point" must be within ? Why ? The radius of a sphere is a straight line drawn from the center to any point in the surface. The diameter of a sphere is a straight line drawn through the center...

## Teachers' Manual for Andrews' Tellurian Globe

Howard H. Gross - Astronomical models - 1885 - 78 pages
...through its center and terminating at both ends in the surface. In the cut, ab and cd are diameters. 18. The Radius of a sphere is a straight line drawn from the center to any point in the surface. In the cut, ce, fe, ae, ge and de are radii. 19. A Great Circle...

## The Elements of Geometry

Webster Wells - Geometry - 1886 - 371 pages
...curved 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, and a diameter is a straight line drawn through the centre, having its extremities in...

## The Elements of Plane and Solid Geometry: With Numerous Exercises

Edward Albert Bowser - Geometry - 1890 - 393 pages
...sphere may be generated by the revolution of a semicircle ACB about its diameter AB as an axis. 658. A radius of a sphere is a straight line drawn from the centre to any point of the surface. A diameter of a sphere is a straight line passing through its centre, and terminating at both ends...