| Euclid, Isaac Todhunter - Euclid's Elements - 1867 - 426 pages
...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...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... | |
| Septimus Tebay - Measurement - 1868 - 168 pages
...9. An obtuse angle is greater than a right angle. 10. An acute angle is less than a right angle. 11. **A circle is a plane figure contained by one line,...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... | |
| E. M. Reynolds - Geometry - 1868 - 172 pages
...serious attention. As the circle is necessary to our constructions, we give here the ordinary definition. **A circle is a plane figure contained by one line called the circumference, and is such that all** lines drawn from a point within it to the circumference are equal. This point is called the centre... | |
| Robert Potts - 1868 - 434 pages
...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 equal to one another. XVI. And this point is called the center... | |
| Isaac Todhunter - Measurement - 1869 - 312 pages
...which are not adjacent is also called a 15. A circle is a plane figure bounded by one lino which is **called the circumference, and is such that all straight...figure to the circumference are equal to one another:** this point is called the centre of the circle. A radius of a circle is a straight line drawn from the... | |
| Richard Wormell - Geometry, Plane - 1870 - 304 pages
...Circumferences.— Use of compasses. 43. A circle is a figure contained by one line, termed the circumference, **such that all straight lines drawn from a certain...within the figure to the circumference are equal.** If we place one of the points of a pair of compasses upon a perfectly even board, and the compasses... | |
| John Bruce Norton - Education, Higher - 1870 - 350 pages
...allusion to it as " a plain figure contained by one line called the circumference, and such that all right **lines drawn from a certain point within the figure to the circumference are equal to one another?"** Why then should we stumble or 'be offended at the use of such terms as " Estopell," "Alimony," " Certiorari,"... | |
| Alfred Hiley - 1871 - 184 pages
...; but if the sides are unequal, and also the angles unequal, then it is an irregular polygon. XXIX. **A circle is a plane figure contained by one line, called the circumference, and is such that all** the straight lines drawn from / a certain point within it to the A circumference are equal to one another.... | |
| 1871 - 788 pages
...Euclid and Montucla have written in vain. According to their definition, the circumference of a circle **'is such, that all straight lines drawn from a certain point within the figure** ,' etc. How in the world could such a point be otherwise than ' within the figure?' IB there any such... | |
| Popular educator - 1872 - 850 pages
...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... | |
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