| John Playfair - 1855 - 348 páginas
...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,...the figure to the circumference, are equal to one** .mother and are called radii 12. And this point is called the centre of the circle. 13. A diameter... | |
| Walter Marsham Adams - 1866 - 114 páginas
...Circle; and secondly, to examine some of the various parts of these figures.. " A Circle," says Euclid, " **is a plane figure contained by one line, which is...figure to the circumference are equal to one another.** And this point is called the centre of the circle " (1.) (AB=AP.) The definitions correspond exactly.... | |
| Edward Clarke Lowe - 1866 - 168 páginas
...which is enclosed by one or more boundaries. 15. A circle is a plane figure contained (or bounded) **by one line, which is called the circumference, and...figure to the circumference are equal to one another.** 1C. And this point is called the centre of the circle. 17. A diameter of a circle is a straight line... | |
| Edward Thomas Stevens - 1866 - 434 páginas
...product is the area. DD THE CIRCLE. Definition : — A circle J8 a plane figure bounded by one line **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 called the centre of the circle.... | |
| Euclid, Isaac Todhunter - 1867 - 426 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 line... | |
| Robert Potts - 1868 - 434 páginas
...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,...all straight lines drawn from a certain point within** tie figure to the circumference, are equal to one another. XVI. And this point is called the center... | |
| Septimus Tebay - 1868 - 164 páginas
...10. An acute angle is less than a right angle. 11. 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 to the circumference are equal to one another. 12. And this point is called the centre of the circle... | |
| Euclides, James Hamblin Smith - 1872 - 372 páginas
...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,...CIRCUMFERENCE, and is such, that all straight lines drawn** to the circumference from a certain point (called the CENTRE) within the figure are equal to one another.... | |
| Popular educator - 1872 - 846 páginas
...contained or bounded by a canal line, called the circumference or periphery, which is snch that aU **straight lines drawn from a certain point within the figure to the circumference are equal to** each other. This point Kg. 6. Fig. 7. is called the centre of the circle, and each of tho straight... | |
| Euclid - 1872 - 286 páginas
...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... | |
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