 | Isaac Todhunter - Euclid's Elements - 1880 - 426 pages
...is the extremity of any thing. 14. A figure is that which is enclosed by one or more boundaries. 15. A circle is a plane figure contained by one line,...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... | |
 | Thomas Liddell Ainsley - 1880 - 866 pages
...those which are called curvilinear, being bounded not by straight lines but by curved lines. Def.—A circle is a plane figure contained by one line, which...is called the circumference, and is such that all strait lines drawn from its centre to the circumference are equal to one another. The straight line... | |
 | Sir Norman Lockyer - Electronic journals - 1880 - 668 pages
...VII. — A plane figure is a portion of a plane surface inclosed by a line or lines. "Def. VIII. — \circle is a plane figure contained by one line, which is called the circumference, &c. "Def. XXII. — A plane rectilineal figure is a portion of a plane surface inclosed by straight... | |
 | Euclides - Euclid's Elements - 1881 - 236 pages
...figurca, u well u to plane figures XV. A circle is a plane figure contained [or, bounded] by •>ae 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. The circumference... | |
 | Education - 1882 - 676 pages
...inclination of two lines to each other in a plane, which meet together, but are not in the same direction. A circle is a plane figure contained by one line which...circumference, and is such that all straight lines drawn from a certain point (called the centre) within the figure to the circumference are equal to one another.... | |
 | Euclid, Isaac Todhunter - Euclid's Elements - 1883 - 426 pages
...is the extremity of any thing. 14. A figure is that which is enclosed by one or more boundaries. 15. A circle is a plane figure contained by one line,...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... | |
 | Euclides - 1884 - 434 pages
...the fixed point is inside the circle, outside the circle, and on the oce. BOOK III. DEFINITIONS. 1. A circle is a plane figure contained by one line which...circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference are equal. This point is called the centre... | |
 | Euclides - 1884 - 214 pages
...is the extremity of anything. XIV. A figure is that which is enclosed by one or more boundaries. XV. A circle is a plane figure contained by one line,...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... | |
 | Euclides - 1884 - 182 pages
...figure ACDE. 1. What is the word ' area ' used for, and what does ' figure ' then mean ? 8. CIRCLES. 15. A circle is a plane figure contained by one line,...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... | |
 | Mathematical association - 1884 - 146 pages
...3. A circle may be drawn with any centre, with a radius equal to any finite straight line. DEF. 41. A circle is a plane figure contained by one line,...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... | |
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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. 
