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" Hemisphere is half a sphere. A Diameter of a sphere is a straight line passing through its centre, and terminating at each end in its surface. "
Elements of Astronomy: Accompanied with Numerous Illustrations, a Colored ... - Page 22
by Sir Norman Lockyer - 1880 - 312 pages
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The American Arithmetic

James Robinson (of Boston.) - 1847 - 304 pages
...sphere, or of any other solid, is a part cut off the top by a plane parallel to its base. 9. The axis or diameter of a sphere is a straight line passing through its centre, and terminating at the surface. 10. The height or altitude of a solid is a line drawn from its vertex, or top, perpendicular...
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A Natural Philosophy: Embracing the Most Recent Discoveries in the Various ...

George Payn Quackenbos - Physics - 1860 - 468 pages
...24. 21. A Square is a rectangle whose sides are equal; , ,' G as, IJ KL, Fig. 23. , 1 23. The Axis of a sphere is a straight line passing through its centre and terminating in its surface, round which it revolves; as, the straight line connecting A and B, in Fig. 24. 24....
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A Natural Philosophy: Embracing the Most Recent Discoveries in the Various ...

George Payn Quackenbos - Physics - 1860 - 484 pages
...which are equally distant from a point within called the centre ; as, AB CD, Fig. 24. 23. The Axis of a sphere is a straight line passing through its centre and terminating in its surface, round which it revolves ; as, the straight line connecting A and B, in Fig. 24. 24....
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A Natural Philosophy, Embracing the Most Recent Discoveries in the Various ...

George Payn Quackenbos - Physics - 1862 - 468 pages
...which are equally distant from a point within called L s. the centre; as, ABCD, Fig. 24. 23. The Axis of a sphere is a straight line passing through its centre and terminating in its surface, round which it revolves; as, the straight line connecting A and B, in Fig. 24. 24....
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Elements of Astronomy: Accompanied with Numerous Illustrations, a Colored ...

Sir Norman Lockyer - Astronomy - 1874 - 332 pages
...circle ; A is the centre, BE CD the circumference; EB, BD, DF, etc., are arcs. A Diameter of a circle is a straight line passing through its centre, and terminating at each end in the circumference, as DE in Fig. 7. Every circle has an infinite number of diameters, all equal. A...
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Elements of Astronomy: Accompanied with Numerous Illustrations, a Colored ...

Sir Norman Lockyer - Astronomy - 1880 - 330 pages
...deviates from a circle. In Fig. 11, if DF, the distance of one of the foci from the centre, is to G f, half the major axis, as 2 to 3, the eccentricity of...represented in Fig. 12, the straight line connecting A and _B is a diameter; and also the axis, if the sphere revolves round this diameter; in which case A and...
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Elements of Geometry

Simon Newcomb - Geometry - 1881 - 418 pages
...Def. The radius of a sphere is the distance of each point of the surface from the centre. 723. Def. A diameter of a sphere is a straight line passing through its centre, and terminated at both ends by the surface. Corollary. Every diameter is twice the radius; therefore all...
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Advanced Arithmetic for Secondary Schools: A Comprehensive Treatise on the ...

John Homer French - Arithmetic - 1889 - 512 pages
...includes the centre of the sphere. b. A circumference of a sphere is any great circle of the sphere. e. A. diameter of a sphere is a straight .line passing through its centre, and terminating at both ends in its surface. d. Every point in the surface of a sphere is equally distant from the centre....
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The Elements of Plane and Solid Geometry ...

Edward Albert Bowser - Geometry - 1890 - 418 pages
...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 in the surface. All the radii of a sphere are equal; and all the diameters are equal, since...
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A Commercial Geography for Academies, High Schools, and Business Colleges

John Newell Tilden - Commercial geography - 1899 - 212 pages
...number of degrees in the arc that subtends it. The Circle and its Parts — Angles A sphere, is a body bounded by a curved surface, every point of which-...is a straight line passing through its centre, and terminated by its surface. The axis of a sphere is the diameter on which it may be supposed to revolve....
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