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A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another.
Elements of Geometry: Containing the First Six Books of Euclid, with a ... - Page 19
by Euclid, John Playfair - 1819 - 333 pages
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## The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago ...

Robert Simson - Trigonometry - 1806 - 518 pages
...extremity of any thing." XIV. A figure is that which is enclosed by onew more boundaries. XV. Book I. A circle is a plane figure contained by one line, which is called l •»•j< the circumference, and is such that all straight lines drawn from a certain point within...
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## A Practical Treatise of Perspective, on the Principles of Dr. Brook Taylor

Edward Edwards - Perspective - 1806 - 414 pages
...properties of right lines and angles, it will be neceflary to fpeak of the circle. A CIRCLE is a plain figure contained by one line, which is called the circumference, and is fuch, that all ftraight lines drawn from a certain point within the figure to the circumference, are...
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## An Essay on the Teeth of Wheels: Comprehending Principles, and Their ...

Robertson Buchanan - Gearing - 1808 - 216 pages
...which meeting do not lie in one line. 2. A triangle is a figure contained by three straight lines. 3. A circle is a plane figure contained by one line,...figure to the circumference, are equal to one another, and this point is called the centre of the circle. 4. The radius of a circle, is a right line drawn...
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## Pantologia. A new (cabinet) cyclopędia, by J.M. Good, O. Gregory ..., Volume 5

John Mason Good - 1813 - 722 pages
...the extremity of "any thin?." H. A figure is that which is inclosed by one qr more boundaries. 15. A circle is a plane figure contained by one line., which is railed the circumference, and is such that all straight lines drawn from a certiiu point within the...
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## The Elements of Euclid; viz. the first six books, together with the eleventh ...

Euclides - 1814 - 558 pages
...is inclosed by one or more boundaries. XV. A circle is a plane figure contained by one line, winch is called the circumference, and is such that all...figure to the circumference, are equal to one another. XVI. And this point is called the centre of the circle. XVII. A diameter of a circle is a straight...
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## An Easy Introduction to the Mathematics: In which the Theory and ..., Volume 2

Charles Butler - Mathematics - 1814 - 528 pages
...figures as are contained by more than one line, as the triangle, square, polygon, &c. are excluded; "and is such that all straight lines drawn from a certain point within the figure" (called in the next following definition " the centre") to the circumference, are equal to one another...
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## A Treatise on Spherics: Comprising the Elements of Spherical Geometry, and ...

Daniel Cresswell - Geometry - 1816 - 294 pages
...OF A SPHERE AND A PLANE. DEFINITIONS. ART. 1. A- Sphere is a solid 'figure contained by one surface, and is such that all straight lines, drawn from a certain point within the figure to the surface, are equal to one another : (2.) And this point is called the Center of the Sphere. (3.) A...
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## Pantologia. A new (cabinet) cyclopędia, by J.M. Good, O. Gregory ..., Volume 5

John Mason Good - 1819 - 740 pages
...ia the extremity of any thing" 14. A figure is that which is inclosed by one or more boundaries. 15. A circle is a plane figure contained by one line, which is called the circumference, mid is such that all straight lines dra'.vn from a cenain |X)int within the figure ю the circumference,...
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## The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ...

Euclid, Robert Simson - Geometry - 1821 - 514 pages
...the extremity of any thing." XIV. A figure is that which is inclosed by one or more boundaries. XV. A circle is a plane figure contained by one line,...figure to the circumference, are equal to one another: XVI. And this point is called the centre of the circle. xy n. A diameter of a circle is a straight...
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## The First Six Books with Notes

Euclid - 1822 - 179 pages
...surface^ which is. bounded on all sides by one or more lines. 15. A circle is a plane figure bounded by one line,, which is called the circumference, and is such that all right lines drawn from a certain point within the figure, to the circumference, are equal to one another....
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