| Euclid, John Playfair - Euclid's Elements - 1846 - 332 pages
...contained in a figure, without any reference to the nature of the line or lines which bound it. 11. **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. 12. And this... | |
| Great Britain. Admiralty - Geometry - 1846 - 130 pages
...any thing. XIV. A figure is that which is enclosed by one or more 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... | |
| Great Britain. Admiralty - Geometry - 1846 - 130 pages
...thing. XIV. A figure is that which is enclosed by one or 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... | |
| Euclides - 1846 - 272 pages
...called acute. 14. A plane figure is a plane superficies, bounded on every side by one or more lines. 15. **A circle is a plane figure, contained by one line, which is called the circumference** ; to which from a certain point within the figure, all right lines drawn are equal. 16. That point... | |
| Euclides - 1847 - 128 pages
...enclosed by one or more boundaries. The quantity of space contained in any figure is called its area. 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... | |
| George Roberts Perkins - Geometry - 1847 - 308 pages
...expression, in ( n — 3). [See Elements of Algebra, 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... | |
| Charles Richson - 1848 - 98 pages
...DEFINITIONS, which may be illustrated by the diagrams; and upon which suitable questions may be asked. 1. **"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/' "And this point... | |
| Euclides - 1848 - 52 pages
...less than a right angle. XIII. XIV. A figure is that which is inclosed 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... | |
| Euclid, Thomas Tate - 1849 - 120 pages
...the extremity of any thing." XIV. A figure is that which is inclosed 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. A VI. And this... | |
| Her MAjesty' Inspectors of schools - 1850 - 912 pages
...iif tin: following definitions, of a circle and parallel straight lines, point out two eirurs. (1.) **A circle is a plane figure contained by one line,...is called the circumference, and is such that all** lines drawn from a certain point within the figure are equal to one anollirr. 3. Eucliil says, "If... | |
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