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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.
The Elements of Euclid, containing the first six books, with a selection of ... - Σελίδα 1
των Euclides - 1874
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## Elements of Plane Geometry According to Euclid

Andrew Bell - 1837 - 290 σελίδες
...surface in reference to that of another figure, with which it is compared, is called its area, 14. A circle is a plane figure contained by one line,...figure to the circumference, are equal to one another. 15. This point is called the centre of the circle. 16. A diameter of a circle is a straight line drawn...

## Elements of Geometry: Containing the First Six Books of Euclid : with a ...

John Playfair - 1837 - 332 σελίδες
...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,...circumference, and is such that all straight lines drawn from a certaia point within the figure to the circumference, are equal to one another. 12. And this point...

## The First Six and the Eleventh and Twelfth Books of Euclid's Elements: With ...

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...rliomboid is a parallelogram which has not its adjacent sides equal, nor its angles right angles. 30. A circle is a plane figure contained by one line,...called the circumference, and is such that all straight Q y lines drawn from a certain point within the figure to K/^>~^0 the circumference are equal to one...

## Treatise on Arithmetic, in Theory and Practice: With an Appendix, Containing ...

James Thomson (LL.D.) - 1837 - 296 σελίδες
...line passing through two of its remote angles. 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....

## Euclid's Elements [book 1-6] with corrections, by J.R. Young

Euclides - 1838 - 264 σελίδες
...is less than a right angle. XI. A figure is that which is enclosed by one or more boundaries. XII. A circle is a plane figure contained by one line,...drawn from a certain point within the figure to the circum ference, are equal to one another. XIII. And this point is called the centre of the circle,....

## The Elements of Euclid; viz. the first six books,together with the eleventh ...

Euclides - 1841 - 378 σελίδες
...the extremity of anything." XIV. A figure is that which is enclosed by one or more boundaries. XV. A circle is a plane figure contained by one line,...figure to the circumference, are equal to one another. XVI. And this point is called the centre of the circle. XVII. A diameter of a circle is a straight...

## Elements of Geometry: Containing the First Six Books of Euclid, with a ...

John Playfair - 1842 - 332 σελίδες
...contained in a figure, without any reference to the nature of the line or lines which bound it.m 1 1 . A circle is a plane figure contained by one line,...figure to the circumference, are equal to one another . 12. And this point is called the centre of the circle. 13. A diameter of a circle is a straight line...

## Elements of geometry: consisting of the first four,and the sixth, books of ...

Euclides - 1842 - 316 σελίδες
...is less than a right angle. XIV. A figure is that which is inclosed by one or more boundaries. XV. A circle is a plane figure contained by one line which...figure to the circumference are equal to one another. XVL This point is called the centre of the circle. XVII, A diameter of a circle is a straight line...

## Lessons on the globes

T H. Howe - 1842 - 458 σελίδες
...taken and joined by a straight line, the straight line will lie altogether in that surface or plane. FA Circle is a plane figure, contained by one line which...figure to the circumference, are equal to one another. c That point within the circle which is thus equally distant from the circumference, is called the...

## A course of practical geometry for mechanics

William Pease - 1843 - 80 σελίδες
...&c. ; but geometrically, that only is a figure, which has either superficial or solid content. XV. A circle is a plane figure contained by one line,...figure to the circumference, are equal to one another. XVI. And this point is called the centre of the circle. A circle is the superficies or space enclosed...