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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.
An Elementary Treatise on Plane and Solid Geometry - Page 24
by Benjamin Peirce - 1837 - 150 pages

## A Practical and Theoretical Arithmetic: Designed for the Use of Schools and ...

Charles D. Lawrence - Arithmetic - 1854 - 310 pages
...bases. 13. The altitude of a trapezoid is the perpendicular which joins the two parallel sides. 14. The circumference of a circle is a curved line, all the points of which are situated in the same plane, and at an equal distance from a point within, called the centre. The circle...

## Plane and Solid Geometry: To which is Added Plane and Spherical Trigonometry ...

George Roberts Perkins - Geometry - 1856 - 460 pages
...the same point. SECOND BOOK, THE CIRCLE, AND ITS COMBINATION WITH THE STRAIGHT LINE. DEFINITIONS. I. The circumference of a circle is a curved line, all...within called the centre. The circle is the space bounded by the circumference. II. Any straight line drawn from the centre to the circumference is called...

## Elements of Geometry and Trigonometry: From the Works of A.M. Legendre

Adrien Marie Legendre - Geometry - 1857 - 444 pages
...THE CIKCLE, AND THE MEASUREMENT OF ANGLES. DEFINITIONS. 1. The CIRCUMFERENCE OF A CIRCLE is a curve line, all the points of which are equally distant...point within, called the centre. The circle is the portion of the plane terminated by the circumference. 2. Every straight line, drawn from the centre...

## Cornell's High School Geography: Forming Part Third of a Systematic Series ...

Sarah S. Cornell - Geography - 1857 - 422 pages
...a Clrele. — A Circle is a plane figure bounded by one continuous line, called its circumference ; all the points of which are equally distant from a point within called the centre of the circle. Thus, in the adjoining figure, if the points A, D, E, and B are equally distant from...

## Bourdon's Arithmetic: Containing a Discussion of the Theory of Numbers

Bourdon (M., Louis Pierre Marie) - Arithmetic - 1858 - 262 pages
...the two divisions of the Circle. — The circumference of a circle is defined in geometry a recutiant line, all the points of which are equally distant from a point within, called the centre. In all the scientific works in this country, the circumference is divided into 360 equal parts, called...

## Rifles and Rifle Practice: An Elementary Treatise Upon the Theory of Rifle ...

Cadmus Marcellus Wilcox - Rifle practice - 1859 - 308 pages
...supposition. CHAPTER IV. TUB CIRCLE AND THE MEASURING OF ANGLES. "WK give the name of circumference to a curved line, all the points of which are equally...distant from a point within, called the centre. ,, The part of the surface contained in the circumference is called the circle. Every right line joining the...

## Plane and Solid Geometry: To which is Added Plane and Spherical Trigonometry ...

George Roberts Perkins - Geometry - 1860 - 443 pages
...the same point. SECOND BOOK. THE CIRCLE, AND ITS COMBINATION WITH THE STRAIGHT LINE. DEF1NIT1ONS. I. The circumference of a circle is a curved line, all...which are equally distant from a point within called the centrs. The circle is the space bounded by the circumference. II. Any straight line drawn from...

## Higher Arithmetic : Or, The Science and Application of Numbers: Combining ...

James Bates Thomson - Arithmetic - 1860 - 446 pages
...Multiply the diameter by 3.14159. (Leg. V. 11. Sch.) Note. — The circumference of a circle is a curve line, all the points of which are equally distant from a point within, called the centre. The diameter of a. circle is a straight line which passes through the centre, and is terminated on both...