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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 : XVI.
The Elements of Geometry, Symbolically Arranged - Page 3
by Great Britain. Admiralty - 1846

## The Elements of Euclid, books i-vi; xi. 1-21; xii. 1,2; ed. by H.J. Hose, Book 1

Euclides - Geometry - 1853 - 334 pages
...plane figure is to be understood. XV. A circle is defined to be a plane figure, contained by one line, such that all straight lines drawn from a certain point within the figure, to meet this one line, are equal to one another. XVI. This one line is called the circumference of the...

## Orr's Circle of the Sciences: Organic nature, vols. 1-3 (1854-1856)

William Somerville Orr - Science - 1854 - 532 pages
...circle is a plane figure enclosed by one line, which is called the circumference of the circle : it is such, that all straight lines, drawn from a certain...figure to the circumference, are equal to one another. This point is called the centre of the circle. And any line drawn from the centre to the circumference...

## The Elements of geometry; or, The first six books, with the eleventh and ...

Euclides - 1855 - 262 pages
...solid figures, as well as to plane figures. XV. A circle is a plane figure contained [or, bounded] by one line, which is called the circumference, and...figure to the circumference, are equal to one another. The circumference of a circle is its boundary. The space contained within the boundary, is called the...

## Mensuration of lines, areas, surfaces, and volumes

Robert Rawson - 1856 - 200 pages
...thing." xrv. A figure is that which is inclosed by one or more boundaries. XV. A circle is a plane figure contained by one line, which is called the...figure to the circumference, are equal to one another. XVL And this point is called the centre of the circle. XVH. A diameter of a circle is a straight line...

## The Popular Educator, Volume 1

1856 - 422 pages
...is a plane figure contained or bounded by a curve line, called the circumference or periphery, which is such that all straight lines drawn from a certain...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 Unes is called...

## Appletons' Cyclopędia of Drawing: Designed as a Text-book for the Mechanic ...

William Ezra Worthen - Architectural drawing - 1857 - 658 pages
...which figs. 11-14 are examples, annexed to which are their respective designations. A circle is a plane figure contained by one line, which is called the...figure to the circumference, are equal to one another. And this point is called the centre of the circle. The term circle is very generally used for the circumference,...

## Appletons' Cyclopędia of Drawing: Designed as a Text-book for the Mechanic ...

William Ezra Worthen - Architectural drawing - 1857 - 654 pages
...are examples, annexed to which are their respective designations. A circle is a plane figure contamed by one line, which is called the circumference, and...figure to the circumference, are equal to one another. And this point is called the centre of the circle. The term circle is very generally used for the circumference,...

## APPLETONS' CYCLOPAEDIA OF DRAWING

W.E. WORTHEN - 1857 - 600 pages
...designations. A circle is a plane figure contained by one line, which is called the tircwnference, and is such that all straight lines, drawn from a...figure to the circumference, are equal to one another. And this point is called the centre of the circle. The term circle is very generally used for the circumference,...