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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.
Elements of Geometry: Containing the First Six Books of Euclid, with a ... - Page 3
by John Playfair - 1806 - 311 pages

## The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago ...

Robert Simson - Trigonometry - 1762 - 466 pages
...extremity of any thing." XIV. A figure is that which is inclofed by one or more boundaries. XV. Book I. A circle is a plane figure contained by one line, which is called the circumference, and is fuch that all ftraight lines drawn from a certain point within the figure to the circumference, are...

## Instructions Given in the Drawing School Established by the Dublin Society ...

Joseph Fenn - Mathematics - 1769
...magnitude. A DEFINITIONS. XIV. Figure, is that which is inclofed by one or more boundaries. Fig. 10. XV. A Circle, is a plane figure contained by one line, which is called the circumference, and is fuch that all ftraight lines (CB, CD,) drawn from a certain point (C) within the figure to the circumference,...

## The Elements of Euclid, Viz: The Errors, by which Theon, Or Others, Have ...

Robert Simson - Trigonometry - 1775 - 520 pages
...extremity of any thing." XIV. A figure is that which is inclofed by one or more boundaries. XV. XV. . A circle is a plane figure contained by one line, which is Called the circumference, and is fuch that all ftraight lines drawn from a certain point within the figure to the circumference, are...

## The First Six Books: Together with the Eleventh and Twelfth

Euclid - 1781 - 520 pages
...any thing." At. V« A figure is that which is inclbfed by one or more boundaries XV. Book I. A cirele is a plane figure contained by one line, which is called the circumference, and is fuch that all ftraight lines drawn from a certain point within the figure to the circumference, are...

## Observations on the Nature of Demonstrative Evidence: With an Explanation of ...

Thomas Beddoes - Geometry - 1793 - 172 pages
...confider fuch angles, with a view to take their relative dimenfions accurately. DEFINITION xv and xvi. A circle is a plane figure contained by one line, which is called the circumference, and is fuch, that all Jlraight lines drawn from a certain point, ivitbin the figure to the circumference,...

## The Elements of Euclid: Viz. the First Six Books, with the Eleventh and ...

Alexander Ingram - Trigonometry - 1799 - 351 pages
...XIII. Omitted. XIV. A figure is that which is inclofed by one or more boundaries. XV. XV. BOOK. I. A circle is a plane figure contained by one line, which is called the circumference, and is fuch that all ftraight lines drawn from a certain point within the figure to the circumference, are...

## The Elements of Euclid: Also the Book of Euclid's Data ...cor. viz. The ...

Robert Simson - Trigonometry - 1804
...thing." XIV. A figure is that which is inclofed by one or more boundaries XV. Book A circle is a plain figure contained by one line, which is called the circumference, and is fuch that all ftraight lines drawn from a certain point within the figure to the circumference, are...

## The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago ...

Robert Simson - Trigonometry - 1806 - 518 pages
...extremity of any thing." XIV. A figure is that which is enclosed by onew more boundaries. XV. Book I. A circle is a plane figure contained by one line, which is called l •»•j< the circumference, and is such that all straight lines drawn from a certain point within...