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CIRCLE is a plane figure bounded by a curved line, all the points of which are equally distant from a point within called the centre; as the figure ADB E.
Elements of Geometry and Trigonometry: With Notes - Page 27
by Adrien Marie Legendre - 1828 - 316 pages

## Elements of Geometry and Trigonometry: With Practical Applications

Benjamin Greenleaf - 1869 - 516 pages
...CIRCLE, AND THE MEASURE 0F ANGLES. DEFINITI0NS. 152. A CIBCLE is a plane figare bounded by a curved line, all the points of which are equally distant from a point within called the centre; as the figure ADB E. 153. The CIRCUMFERENCE or PERIPHERY of a circle is its entire bounding line ;...

## A Natural Philosophy: Embracing the Most Recent Discoveries in the Various ...

George Payn Quackenbos - Physics - 1869 - 450 pages
...rectangle whose sides are equal; as, IJKL, Fig. 23. 22. A Sphere is a solid bounded by a curved surface, all the points of which are equally distant from a point within called the centre; as, ABCD, Fig. 24. " 23. The Axis of a sphere is a straight line passing through its centre and terminating...

## New Practical Arithmetic in which the Science and Its Applications are ...

Henry Bartlett Maglathlin - Arithmetic - 1869 - 332 pages
...latitude and longitude, difference of direction, etc. 218. A Circle is a plane figure, bounded by a curved line, all the points of which are equally distant from a point within, called the center. 219. The Circumference of a circle is its entire bounding line. 220. An Arc of a circle...

## The Principles of Logic: For High Schools and Colleges

Aaron Schuyler - Logic - 1859 - 180 pages
...real definition is a definition of a thing. Thus, a sphere is a volume bounded by a curved surface all the points of which are equally distant from a point within. 3d. A genetic definition is a definition exhibiting the mode of producing the thing. Thus, a sphere...

## An Elementary Treatise on Plane and Solid Geometry

Benjamin Peirce - 1870 - 198 pages
...AND THE MEASURE OF ANGLES. 85. Definitions. The circumference of a circle is a curved Zme, all tlie points of which are equally distant from a point within, called the centre. The circle is the apace terminated by this curved line. Diameter, Inscribed Lines. line, as AB, ./2C, JID (fig. 43),...

## Elements of Geometry and Trigonometry: With Applications in Mensuration

Charles Davies - Geometry - 1870 - 319 pages
...bisect each other at right angles. GEOMETRY. BOOK II, OF THE CIRCLE DEFINITIONS. 1. THE ciicumference of a circle is a curve line, all the points of which are equally distant from a certain point within called the centre. 3. The circle is the space bounded by this curve line. 3. Every...

## The Southern Review, Volume 9; Volume 12; Volume 15

1871 - 788 pages
...author's definition of the circumference of a circle. ' The circumference of a circle,' says he, ' is a curve line, all the points of which are equally distant 1 Todhunter's Geometry, Def. 14; Playfair's Euclid, Def. 10. Both authors use precisely the same words...

## A Treatise on Elementary Geometry: With Appendices Containing a Collection ...

William Chauvenet - Geometry - 1871 - 380 pages
...the figure. BOOK II. THE CIRCLE. 1. DEFINITIONS. A circle is a portion of a plane bounded by a curve, all the points of which are equally distant from a point within it called the centre. The curve which bounds the circle is called its circumference: Any straight line...