| James McCosh - 1882 - 472 páginas
...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 páginas
...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 páginas
...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 páginas
...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 páginas
...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... | |
| William Dodds - 1883 - 198 páginas
...THE CIRCUMFERENCE AND DIAMETER OF A CIRCLE. 96. A Circle is a plane figure bounded bj a curved line **called the circumference, and is such that all straight lines drawn from a** point within the figure to the circumference are equal, and this point is called the centre of the... | |
| Mathematical association - 1884 - 146 páginas
...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,...figure to the circumference are equal to one another.** This point is called the centre of the circle. DEF. 42. A radius of a circle is a straight line drawn... | |
| Euclides - 1884 - 214 páginas
...Postulate 3. A circle may be described from any centre and at any distance from that centre. Definition 15. **A circle is a plane figure contained by one line,...figure to the circumference are equal to one another.** Axiom 1. Magnitudes which are equal to the same magnitude are equal to one another. PROPOSITION IV.... | |
| Association for the improvement of geometrical teaching - 1884 - 150 páginas
...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,...figure to the circumference are equal to one another.** This point is called the centre of the circle. DEF. 42. A radius of a circle is a straight line drawn... | |
| Euclides - 1884 - 182 páginas
...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,...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 line... | |
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