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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: With, Practical Applications - Page 17
by George Roberts Perkins - 1850 - 320 pages
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The First Six, and the Eleventh and Twelfth Books of Euclid's Elements: With ...

Euclid, James Thomson - Geometry - 1845 - 382 pages
...not its adjacent sides equal, nor its angles right angles. 30. A circle is a plane figure contained by one line, which is called the circumference* and is such that R all straight lines drawn from a certain point within the figure to the circumference are equal to...
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The Elements of Geometry, Symbolically Arranged

Great Britain. Admiralty - Geometry - 1846 - 128 pages
...A figure is that which is enclosed by one or more boundaries. XV. Acircleis aplanefigure contained by one line, which is called the circumference, and...straight lines drawn from a certain point within the figure to the circumference, are equal to one another. XVI. And this point is called the centre of...
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Elements of Geometry: Containing the First Six Books of Euclid, with a ...

Euclid, John Playfair - Euclid's Elements - 1846 - 334 pages
...reference to the nature of the line or lines which bound it. 11. A circle is a plane figure contained by one line, which is called the circumference, and...straight lines drawn from a certain point within the figure to the circumference, are equal to one another. 12. And this point is called the centre of the...
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The Elements of Euclid, the parts read in the University of Cambridge [book ...

Euclides - 1846 - 292 pages
...figure is that which is inclosed by one or more boundaries. xv. A circle is a plane figure contained by one line, which is called the circumference, and...straight lines, drawn from a certain point within the figure to the circumference, are equal to one another : xvi. And this point is called the centre of...
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The Elements of Geometry, Symbolically Arranged

Great Britain. Admiralty - Geometry - 1846 - 128 pages
...figure is that which is enclosed by one or more boundaries. XV. Acircle is aplane figure contained by one line, which is called the circumference, and...straight lines drawn from a certain point within the figure to the circumference, are equal to one another. XVI. And this point is called the centre of...
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A Technological Dictionary: Explaining the Terms of the Arts, Sciences ...

W. M. Buchanan - Science - 1846 - 768 pages
...magical operations. CIB'CLB, Lat. circulus, from circus. A geometrical figure contained under one line called the circumference ; and is such, that all straight lines drawn from a certain point within the figure called the centre, to the circumference, arc equal to one another. Thus, In the figure, AB =...
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The first book of Euclid's Elements, simplified, explained and illustrated ...

Euclides - 1847 - 128 pages
...quantity of space contained in any figure is called its area. 15. A circle is a plane figure contained by one line, which is called the circumference; and...straight lines, drawn from a certain point within the figure to the circumference, are equal to one another : — 16. And this point is called the centre...
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The Philosophy of the Inductive Sciences: Founded Upon Their History, Volume 1

William Whewell - Science - 1847 - 756 pages
...circle, — " that it is a figure contained by one line, which is called the circumference, and which is such, that all straight lines drawn from a certain point within the circumference are equal to one another," — we were to substitute an axiom and a definition, as follows...
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The Decorator's assistant

458 pages
...That it wants of 180 degrees. 25- A figure is that which is enclosed by one or more boundaries. 21. A circle is a plane figure bounded by one line, which is a curve, AB co A, and which is called the circumference; it is everywhere equally distant from a given...
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Lessons on the delineation of form

Charles Richson - 1848 - 98 pages
...diagrams; and upon which suitable questions may be asked. 1. "A circle is a plane figure, contained by one line, which is called the circumference, and...straight lines drawn from a certain point within the figure to the circumference are equal to one another/' "And this point is called the centre of the...
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