| Robert Potts - 1868 - 434 pages
...that which is less than a right angle. XTTI. A term or boundary is the extremity of any thing. xrv. 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 tie figure to the circumference, are... | |
| Euclides - 1870 - 270 pages
...same plane, the figure is called a plane figure." — HOSE. 15. A circle (circulus, a ring, or hoop) is a plane figure contained by one line, which is called the circumference (circumferre, to carry round), and is such that all straight lines drawn from a certain point within... | |
| Euclides - 1871 - 136 pages
...is less than a right angle. XII. A FIGURE is that which is enclosed by one or -ore boundaries. XIII. A CIRCLE is a plane figure contained by one line, -which is called the CIRCUMFERENCE, and is such, that all straight lines drawn to the circumference from a certain point (called the CENTRE) within... | |
| Euclides, James Hamblin Smith - Geometry - 1872 - 376 pages
...less than a right angle. XII. A FIGURE is that which is enclosed by one or •'ore boundaries. XIII. A CIRCLE is a plane figure contained by one line, which is called the CIRCUMFERENCE, and is such, that all straight lines drawn to the circumference from a certain point (called the CENTRE) within... | |
| Euclid - Geometry - 1872 - 284 pages
...called acute. 14. A plane figure is a plane superficies, hounded 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 is... | |
| Euclid, Charles Peter Mason - Geometry - 1872 - 216 pages
...XII. An acute angle is an angle which is less than a right angle. Def. XV. A circle is a plane bounded figure, contained by one line, which is called the circumference, and is such, that every point in it is at the same distance from a certain point within, which is called the... | |
| Euclides - 1874 - 342 pages
...is the extremity of any thing. 14. A figure is that which is inclosed by one or more boundaries. 16. 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... | |
| Euclides - 1874 - 120 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, which is called the circumference, and is such, that all straight lines drawn from a certain point within the figure to the circumference are... | |
| Edward Atkins - 1874 - 426 pages
...is the extremity of anything. 14. A figure is that which is enclosed by one Or more boundaries. 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... | |
| Henry Lewis (M.A.) - Measurement - 1875 - 104 pages
...Nonagon. 1-3737 6-1818 10 Decagon. 1-5388 7-6942 11 Undecagon. J -7028 9-3656 12 Duodecagou. 1-866 11-1962 A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight lines drawn from its centre to the circumference are equal to one another. The... | |
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