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" 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. "
The Complete Arithmetic, Oral and Written, on the Basis of Works - Σελίδα 260
των Henry Bartlett Maglathlin - 1882 - 368 σελίδες
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...MYTHOLOGY; ODYSSEY. CIRCLE, sur'k'l. A circle is a plane figure bounded by a curved line, all points of which are equally distant from a point within, called the center. Parts of a Circle. Circumference. The line which bounds the circle is called the circumference, and...

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...CIRCLES 62. A curved line is a line no part of which is straight. A circle is a curved line all points of which are equally distant from a point within called the center. Any part of the curve is an arc. The radius of a circle is a straight line drawn from the center to...

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...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...




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