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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. "
A Treatise on Spherics: Comprising the Elements of Spherical Geometry, and ... - Page iii
by Daniel Cresswell - 1816 - 294 pages
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Mensuration of lines, areas, surfaces, and volumes

Robert Rawson - 1856 - 174 pages
...boundaries. XV. 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. XVL And this point is called the centre of the circle. XVH....
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The Popular Educator, Volume 1

1856
...is a plane figure contained or bounded by a curve line, called the circumference or periphery, which is such that all straight lines drawn from a certain point within the figure to the circumference are equal to each other. This point is called the centre of the circle, and each of the...
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APPLETONS' CYCLOPAEDIA OF DRAWING

W.E. WORTHEN - 1857 - 600 pages
...designations. A circle is a plane figure contained by one line, which is called the tircwnference, and is such that all 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 circle. The term...
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Appletons' Cyclopędia of Drawing: Designed as a Text-book for the Mechanic ...

William Ezra Worthen - Architectural drawing - 1857 - 658 pages
...designations. 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. And this point is called the centre of the circle. The term...
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Rudimentary Dictionary of Terms Used in Architecture: Civil, Architecture ...

John Weale - Architecture - 1859 - 626 pages
...thickness of solids. Circle, a plain 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 anCHU CIRCULAR. С Г- А other, and this point is called the centre...
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Gradations in Euclid : books i. and ii., with an explanatory preface [&c ...

Euclides - 1858 - 244 pages
...point. DEMONSTRATION. — Def. 15. A 0 is a plane figure contained by one line which is called the ©ce, and is such that all straight lines drawn from a certain point within the figure (called the centre) to the ©ce are equal to one another. Ax. 1. Magnitudes which are equal to the...
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Euclid's Elements of Geometry: Chiefly from the Text of Dr. Simson, with ...

Robert Potts - Geometry, Plane - 1860 - 361 pages
...boundaries. XV. 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. XVI. And this point is called the center of the circle. xvn....
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The Intuitions of the Mind Inductively Investigated

James McCosh - History - 1860 - 512 pages
...to any length in a straight line;" "There may be such a figure as a circle, that is, a plane figure such that all straight lines drawn from a certain point within the figure are equal to one another;" and that "A circle may be described from any centre at any distance from...
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The quadrature of the circle: correspondence between an eminent ...

James Smith - Circle-squaring - 1861 - 288 pages
...imagine," is a plane figure, enclosed by one line, which is called the circumference of the circle, it is such, that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another. This point within the figure is called the centre of the circle....
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Artis logicę rudimenta, from the text of Aldrich, with notes, by H.L. Mansel

Henry Aldrich - 1862 - 376 pages
...the definition, that " a circle is a 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," involves the assumption that a line so drawn as to be always...
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