 | Walter Marsham Adams - 1866 - 114 pages
...some of the various parts of these figures.. " A Circle," says Euclid, " 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 equal to one another. And this point is... | |
 | Edward Thomas Stevens - 1866 - 434 pages
...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... | |
 | Euclid, Isaac Todhunter - Euclid's Elements - 1867 - 426 pages
...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 equal to one another : 16. And this point... | |
 | Robert Potts - 1868 - 434 pages
...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 equal to one another. XVI. And this point... | |
 | Septimus Tebay - Measurement - 1868 - 168 pages
...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... | |
 | Isaac Todhunter - Measurement - 1869 - 312 pages
...polygon 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 lines drawn from a certain point within the figure to the circumference are equal to one another: this point is called... | |
 | Euclides - 1870 - 270 pages
...any one point to any other point. DEMONSTRATION. — Def. 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 (called the centre) to the circumferenee are equal to one another.... | |
 | Euclides - 1871 - 136 pages
...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 the figure are eqxial to one another.... | |
 | Euclides, James Hamblin Smith - Geometry - 1872 - 376 pages
...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 the figure are equal to one another.... | |
 | Euclid, Charles Peter Mason - Geometry - 1872 - 216 pages
...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 centre.... | |
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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 equal to one another. 
