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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. "
First principles of Euclid: an introduction to the study of the first book ... - Page 18
by T S. Taylor - 1880
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Stories about Mathematics-land, Volume 2

D. Ponton - Mathematics - 1927 - 168 pages
...contains two right angles. A Plane Figure is any portion of a plane surface bounded by one or more lines. A Circle is a plane figure contained by one line,...point within the figure to the circumference are equal to one another. This point is called the Centre of the Circle, and the straight line drawn from the...
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The Edinburgh Review, Volume 67

English literature - 1838 - 596 pages
...property for an axiom ? Will Mr Whewell reason as follows? — ' A circle ' is defined by Euclid to be " a plane figure contained by one ' line, which is called...drawn from a certain point within the figure to the circumfe' rence, are equal to one another." How does it appear that ' any line can have such a character...
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Popular Science Monthly, Volume 68

Science - 1906 - 600 pages
...circle is a plane figure contained by one line, which is called the circumference and is such that all lines drawn from a certain point within the figure to the circumference are equal to one another: 16. And this point is called the center of the circle. It is evident that in the first...
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The Sheet-Metal Worker's Instructor

R. H. Warn, John G. Horner - Crafts & Hobbies - 2002 - 292 pages
...extremity of anything. 11. A figure is that Fig. 3. which is enclosed by one or more boundaries. 12. A. circle is a plane figure contained by one line,...point within the figure to the circumference are equal (Fig. 4). 13. And this point is called the centre of the circle (Fig. 4,0). 14. A diameter of a circle...
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