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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 : XVI. "
The first six books of the Elements of Euclid, with numerous exercises - Σελίδα 2
των Euclides - 1853 - 147 σελίδες
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The Americana: A Universal Reference Library, Comprising the Arts ..., Τόμος 5

Frederick Converse Beach, George Edwin Rines - 1912
...Apus, Musca, Centaurus , Lupus, Norma, and Triangulum Australe. Circle, in geometry, a plane ligure contained by one line, which is called the "circumference"...that all straight lines drawn from a certain point (the "centre") within the figure to the circumference are equal to one another. According to this definition...

Everybody's Cyclopedia: A Concise and Accurate Compilation of the ..., Τόμος 1

Charles Leonard-Stuart, George Jotham Hagar - 1912
...year, he forgot his glory in his devotion to pleasure. Circle, a plane figure contained by one Hue, which is called the circumference, and is such that all straight lines drawn from a certain point (the center) within the figure to the circumference are equal lo one another. Circle, Magic, u space...

Winston's Cumulative Loose-leaf Encyclopedia: A Comprehensive ..., Τόμος 3

Charles Morris - 1923 - 502 σελίδες
...that are rolled up like a watchspring before expanding. Circle ts'.r'kl)> * plane figure con"" tained by one line, which is called the circumference, and...that all straight lines drawn from a certain point (the center) within the figure to the circumference are equal to one another. The properties of the...

Abraham Lincoln: The Prairie Years,

Carl Sandburg - 1926
...no parts and which has no magnitude; (2) a line is length without breadth; (15) a circle is a plane figure contained by one line, which is called the...figure to the circumference are equal to one another; (16) and this point is called the centre of the circle. Also it began with Axioms or Common Notions:...

The Edinburgh Review, Τόμος 67

1838
...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 the...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...

Popular Science Monthly, Τόμος 68

1906
...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 of these statements,...

The Sheet-Metal Worker's Instructor

R. H. Warn, John G. Horner - 2002 - 284 σελίδες
...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, which is called the...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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Minutes of the Committee of Council on Education, Τόμος 2

Great Britain. Committee on Education - 1850
...definitions, of a circle and parallel straight lines, point out two errors. (1.) A 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 are equal to one anotlirr. (2.) Parallel lines are...

Arithmetic for Competitive Examinations

N.M. Kapoor - 2006 - 880 σελίδες
...r2 + R/ + rl) Slant height (/) = V/.2 + (Rr)2 8. Sphere : A sphere is a solid bounded by one surface and is such that all straight lines drawn from a certain point within the solid to the bounding surface are equal. This certain point is called the centre of the sphere. A line...
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