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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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The advanced lesson book, by E.T. Stevens and C. Hole

Edward Thomas Stevens - 1866 - 434 pages
...THE CIRCLE. Definition : — A circle J8 a plane figure bounded by one line called the circumference, and is such that all straight lines drawn from, a certain point within the circle to the circumference are equal to one another. This point is called the centre of the circle....
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The Elements of Euclid for the Use of Schools and Colleges: Comprising the ...

Euclid, Isaac Todhunter - Euclid's Elements - 1867 - 426 pages
...boundaries. 15. 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 : 16. And this point is called the centre of the circle. 17....
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Elementary Mensuration for the use of schools, etc

Septimus Tebay - Measurement - 1868 - 168 pages
...than a right angle. 11. A circle is a plane figure contained by one line, called the circumference, and is such that all straight lines drawn from a certain point within it to the circumference are equal to one another. 12. And this point is called the centre of the circle...
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Euclid's Elements of Geometry: Chiefly from the Text of Dr. Simson, with ...

Robert Potts - 1868 - 434 pages
...thing. xrv. 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 tie figure to the circumference, are equal to one another. XVI. And this point is called the center...
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Mensuration for Beginners: With Numerous Examples

Isaac Todhunter - Measurement - 1869 - 312 pages
...also called a 15. A circle is a plane figure bounded by one lino 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: this point is called the centre of the circle. A radius of...
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An Elementary Course of Plane Geometry

Richard Wormell - Geometry, Plane - 1870 - 304 pages
...Circumferences.— Use of compasses. 43. A circle is a figure contained by one line, termed the circumference, such that all straight lines drawn from a certain point within the figure to the circumference are equal. If we place one of the points of a pair of compasses upon a perfectly even...
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The Southern Review, Volume 9; Volume 12; Volume 15

1871 - 788 pages
...Euclid and Montucla have written in vain. According to their definition, the circumference of a circle 'is such, that all straight lines drawn from a certain point within the figure ,' etc. How in the world could such a point be otherwise than ' within the figure?' IB there any such...
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The popular educator, Volume 1; Volume 29

Popular educator - 1872 - 850 pages
...contained or bounded by a canal line, called the circumference or periphery, which is snch that aU straight lines drawn from a certain point within the figure to the circumference are equal to each other. This point Kg. 6. Fig. 7. is called the centre of the circle,...
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The Acting Teacher's and Student's in Training Guide and Text Book for ...

Henry Major - Student teachers - 1873 - 592 pages
...more boundaries. , XV. A circle is a plane figure contained by one line, called the circumference, such that all straight lines drawn from a certain point within the figure to the circumference are equal to one another. XVI. This point is called the centre. XVII. A diameter of a...
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Elementary Mathematics: Embracing Arithmetic Geometry, and Algebra

Lewis Sergeant - 1873 - 182 pages
...than four straight lines. 34. A circle is a figure contained by one line, called the circumference, and is such that all straight lines drawn from a certain point within the circle to the circumference are equal to each other. 35. This point is called the centre of the circle;...
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