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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: The Errors, by which Theon, Or Others, Have Long Ago ... - Page 3
by Robert Simson - 1762 - 466 pages

## Rudimentary Dictionary of Terms Used in Architecture, Civil ..., Volumes 1-2

John Weale - Architecture - 1850 - 600 pages
...plain 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 called the centre of the circle The circumference of a circle is known to be about...

## Rudimentary dictionary of terms used in architecture [&c.].

John Weale - 1850 - 590 pages
...plain 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 called the centre of the circle Circular saw. Circular saws, revolving upon an axis,...

## The first two books of the Elements of Euclid, with additional figures ...

Euclides - 1852 - 152 pages
...contained by one line, which is called the circumference, and is such that all straight lines B 3 BOOK I. drawn from a certain point within the figure to the...to one another. XVI. And this point is called the centre of the circle. [In the above figures A is the centre of the circle; B is not the centre.] XVII....

## The Elements of Euclid [book 1] for beginners, by J. Lowres

Euclides - 1852 - 48 pages
...a plane figure bounded by one line called the circumference, and is of such a kind, that all right lines drawn from a certain point within the figure to the circumference are equal to one another ; as, the circle DBF. 17. This point is called the centre of the circle, and the right line drawn from...

## The popular educator, Volumes 1-2; Volume 5

Popular educator - 1852 - 842 pages
...a ame line, called the cireumference or periphery, which is such that all straight linen drawn trom a certain point within the figure to the circumference are equal to each other. This point is called the centre of the circle, and each of the straight lines is called...

## The first six books of the Elements of Euclid, with numerous exercises

Euclides - Geometry - 1853 - 176 pages
...plain 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 one another. XVI. And this point is called the centre of the circle. XVII. A diameter of a circle is a straight line drawn through the centre, and...

## The synoptical Euclid; being the first four books of Euclid's Elements of ...

Euclides - 1853 - 146 pages
...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 one another. XVI. And this point is called the centre of the circle. XVII. A diameter of a circle is a straight line drawn through the centre, and...

## The geometry, by T. S. Davies. Conic sections, by Stephen Fenwick

Royal Military Academy, Woolwich - Mathematics - 1853 - 400 pages
...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 is called the centre of the circle. 17. A diameter of a circle is a straight line...