 | Euclid, James Thomson - Geometry - 1845 - 382 pages
...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 one another.* 31. That point is called the centre of the circle. 32. Any... | |
 | Great Britain. Admiralty - Geometry - 1846 - 128 pages
...boundaries. XV. Acircle is aplane 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 centre of the circle. XVII.... | |
 | Great Britain. Admiralty - Geometry - 1846 - 128 pages
...more boundaries. XV. Acircleis aplanefigure 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 centre of the circle. XVII.... | |
 | Euclides - 1846 - 292 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 centre of the circle. xvn.... | |
 | Euclid, John Playfair - Euclid's Elements - 1846 - 334 pages
...bound it. 11. 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. 12. And this point is called the centre of the circle. 13.... | |
 | W. M. Buchanan - Science - 1846 - 768 pages
...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 = AC = AD.... | |
 | Euclides - 1847 - 128 pages
...its area. 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.... | |
 | George Roberts Perkins - Geometry - 1847 - 326 pages
...Art. 178.] XXIII. A circle is a plane figure bounded by one line, which is 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.... | |
 | 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... | |
 | Charles Richson - 1848 - 98 pages
...be asked. 1. "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." (A pair... | |
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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. 
