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" THE sphere is a solid terminated by a curve surface, all the points of which are equally distant from a point within, called the centre. "
Elements of Geometry: With, Practical Applications - Page 231
by George Roberts Perkins - 1850 - 320 pages
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A Treatise on Nautical Astronomy: For the Use of Students

John Merrifield - Nautical astronomy - 1886 - 376 pages
...equally distant from a point fixed relatively to that surface. This point is the centre of the sphere. It may be conceived to be generated by the revolution of a semicircle abovit its diameter, which remains fixed in space. A GREAT CIRCLE is one whose plane passes through...
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Exercises in Arithmetic

George Albert Wentworth, George Anthony Hill - Arithmetic - 1887 - 448 pages
...does the chimney contain ? ARITHMETICAL EXERCISES. A Sphere is a solid bounded by a curved surface all points of which are equally distant from a point within called the centre. A straight line drawn from the centre to the surface is called a radius, and a straight line drawn...
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Chauvenet's Treatise on Elementary Geometry

William Chauvenet, William Elwood Byerly - Geometry - 1887 - 331 pages
...parallelogram. BOOK II. THE CIRCLE. 1. DEFINITIONS. A circle is a portion of a plane bounded t>y tę curve, all the points of which are equally distant from a point within it called the centre. The curve which bounds the circle is called its circumference. Any straight line...
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Practical Arithmetic

Charles Scott Venable - Arithmetic - 1888 - 402 pages
...its sides equal. The figure C1 is a square. 935. A clrele is a plane figure bounded by a curved line, all the points of which are equally distant from a point within called the centre. 936. The line that bounds a circle is the circumference ; any straight line from the centre to the...
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A Text-book of Geometry

George Albert Wentworth - Geometry - 1888 - 274 pages
...DEFINITIONS. 210. A circle is a portion of a plane bounded by a curved line called a circumference, all points of which are equally distant from a point within called the centre. 211. A radius is a straight line drawn from the centre to the circumference ; and a diameter is a straight...
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Manual of Plane Geometry: On the Heuristic Plan, with Numerous Extra ...

George Irving Hopkins - 1891 - 208 pages
...altitude of the triangle. OIKOLES. 183. A circle is a portion of a plane bounded by a curved line, all points of which are equally distant from a point within called the centre. The bounding line is called the circumference. Any portion of the circumference is called an arc. A radius...
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Elements of Pedagogics

James N. Patrick - Educational psychology - 1891 - 232 pages
...is heavier than water; therefore, lead will sink. A circle is a plane figure bounded by a curve, all points of which are equally distant from a point within called the centre; the figure on the blackboard is a plane figure bounded by a curved line, all points of which are equally...
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Plane and Solid Geometry

Seth Thayer Stewart - Geometry, Modern - 1891 - 422 pages
...J.— EQUAL CHORDS AND ARCS. DEFINITIONS. 236. A circle is a plane figure bounded by a curved line, all the points of which are equally distant from a point within, called the center ; as the circle whose center is C. 237. The circumference is the line that bounds the circle....
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Robinson's New Practical Arithmetic for Common Schools and Academies

Horatio Nelson Robinson - Arithmetic - 1892 - 430 pages
...off the top by a plane parallel to the base. 546. 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. 54 7. The Diameter of a sphere is a straight line passing through the center of the sphere,...
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Robinson's New Practical Arithmetic for Common Schools and Academies

Horatio Nelson Robinson - Arithmetic - 1892 - 428 pages
...off the top by a plane parallel to the base. 546. 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. 547. The Diameter of a sphere is a straight line passing through the center of the sphere,...
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