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A sphere is a solid, bounded by one continued convex surface, every point of which is equally distant from a point within, called the centre. The sphere may be conceived to be formed by the revolution of a semicircle about its diameter, which remains...
The Description and Use of the Globes, and the Orrery: To which is Prefixed ... - Pagina 27
door Joseph Harris - 1732 - 190 pagina’s
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## Mathematics: Compiled from the Best Authors, and Intended to be ..., Volume 2

Samuel Webber - 1808
...surface, every point of which is equally distant from a point within, called the centre* The sphere may be conceived to be formed by the revolution of a semicircle about its diameter, which remains fixed. 9. The axis of a solid, is aline drawn from the middle of...
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## A Treatise of Plane and Spherical Trigonometry: In Theory and Practice ...

Francis Nichols - 1811 - 128 pagina’s
...round surface, which is every where equally distant from a point within it called the centre. A sphere may be conceived to be formed by the revolution of a semicircle about its diameter, which remains unmoved, and is called the axis of the sphere. 2. A diameter of a...
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## A treatise on practical geometry, mensuration, conic sections, gauging, and ...

...on. 9. A cone is a round pyramid, having a circle for its base. 10. A sphere is a round solid, which may be conceived to be formed by the revolution of a semi-circle about its diameter which remains fixed. 11. The axis of a solid is a line joining the middle* o> both...
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## The Western Arithmetic: Or, Pennsylvania and Ohio Accomptant: Being a Plain ...

James L. Connolly (mathematician.) - 1835 - 250 pagina’s
...round solid body, every part of whose surface is equally from a point within it, called the centre; and it may be conceived to be formed by the revolution of a semicircle round its diameter. To find its solidity, this is the RULE. Multiply the axis or diameter into the circumfe. rence, and...
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## The Mechanic's Calculator: Comprehending Principles, Rules, and Tables in ...

William Grier - 1836 - 344 pagina’s
...SECTIONS. DEFINITIONS. A CONE is a solid figure having a circle for its base and terminated in a vertex ; it may be conceived to be formed by the revolution of a triangle about one of its sides. Conic Sections are the figures made by a plane cutting a cone. According...
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## The Mechanic's Calculator: Comprehending Principles

William Grier - 1836 - 344 pagina’s
...SECTIONS. DEFINITIONS. A CONK is a solid figure having a circle for its base and terminated in a vertex ; it may be conceived to be formed by the revolution of a triangle about one of its sides. Conic Sections are the figures made by a plane cutting a cone. According...
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## A Treatise on Mensuration for the Use of Schools

Commissioners of National Education in Ireland - 1837 - 262 pagina’s
...on. 8. A cone is a round pyramid, having a circle for its base. 9. A sphere is a round solid, which may be conceived to be formed by the revolution of a semi-circle about its diameter which remains fixed. 10. The axis of a solid is a line joining the middle of both...
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## The National Arithmetic, on the Inductive System: Combining the Analytic and ...

Benjamin Greenleaf - 1839 - 305 pagina’s
...surface, every point of which is equally distant from a point within, called the centre. The sphere may be conceived to be formed by the revolution of a semicircle about its diameter, which remains fixed. A hemisphere is half a sphere. 9. The segment of a pyramid,...
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## The National Arithmetic ...: Combining the Analytic and Synthetic Methods ...

Benjamin Greenleaf - 1841 - 314 pagina’s
...surface, every point of which is equally distant from a point within, called the centre. The sphere may be conceived to be formed by the revolution of a semicircle about its diameter, which remains fiXed. A hemisphere is half a sphere. 9. The segment of a pyramid,...
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## A New System of Arithmetic, on the Cancelling Plan: Embracing the Rules of ...

Charles Guilford Burnham - 1841 - 312 pagina’s
...surface, every point of which is equally distant from a point within, called the centre. The sphere may be conceived to be formed by the revolution of a semicircle about its diameter, which remains fixed. A hemisphere is half a sphere. 9. The segment of a pyramid,...
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