| James Thomson - 1880 - 408 sider
...angles which are not adjacent to one another. XVII. A CIRCLE is a figure contained, on a flat surface, **by one line which is called the CIRCUMFERENCE ; and is such that all straight lines drawn** to the circumference from a certain point within the figure, called the CENTRE, are equal to each other.... | |
| Euclides, Frederick Burn Harvey - 1880 - 178 sider
...which is contained by one or more boundaries. 15. A CIRCLE is a plane figure contained by one line **called the CIRCUMFERENCE, and is such that all straight lines drawn from a certain point within** it, called the CENTRE, to the circumference are equal to each other. Each of such equal straight lines... | |
| Sir Norman Lockyer - 1880 - 668 sider
...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 - 1881 - 236 sider
...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...figure to the circumference, are equal to one another.** The circumference of a circle ie its boundary. The space contained within the boundary, \s called the... | |
| 1882 - 676 sider
...them lies wholly in that superficies. An obtuse angle is that which is greater than a right angle. **A circle is a plane figure contained by one line which...circumference, and is such that all straight lines drawn from** я certain point (called the centre) within the figure to the circumference are equal to one another.... | |
| James McCosh - 1882 - 472 sider
...any length in a straight line ;" " There may be such a figure as a circle, that is, a plane figure **such that all straight lines drawn from a certain point •within the figure** are equal to one another ;" and that " A circle may be described from any centre at any distance from... | |
| Marianne Nops - 1882 - 278 sider
...the definition of a circle (def. 15). It is to the latter part that I wish to draw your attention, ' **and is such that all straight lines drawn from a certain point** (the centre) within the figure to the circumference are equal.' Here is a mode of measuring the lines... | |
| Euclid, Isaac Todhunter - 1883 - 428 sider
...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,...figure to the circumference are equal to one another** : 16. And this point is called the centre of the circle. 17. A diameter of a circle is a straight lino... | |
| Euclides - 1883 - 176 sider
...that of an angle, which is one not " enclosed." 11. A circle is a plane figure bounded by one line **called the circumference, and is such that all straight...figure to the circumference are equal to one another.** 12. This point is called the centre of the circle. A radius is a straight line from the centre to the... | |
| Mathematical association - 1883 - 86 sider
...in that surface. DEF. 7. A plane figure is a portion of a plane surface enclosed by a line or lines. **straight lines drawn from a certain point within the...figure to the circumference are equal to one another.** This point is called the centre of the circle. DEF. 9. A radius of a circle is a straight line drawn... | |
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