Books Books
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.
A Treatise on Spherics: Comprising the Elements of Spherical Geometry, and ... - Page iii
by Daniel Cresswell - 1816 - 294 pages

First principles of Euclid: an introduction to the study of the first book ...

T S. Taylor - 1880 - 152 pages
...Definitions. — 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. And that point is called the centre of the circle. General Enunciation. From...

Euclid for beginners, books i. and ii., with simple exercises by F.B. Harvey

Euclides, Frederick Burn Harvey - Geometry - 1880 - 178 pages
...or more boundaries. 15. A CIRCLE is a plane figure contained by one line called the CIRCUMFERENCE, and is such that all straight lines drawn from a certain point within it, called the CENTRE, to the circumference are equal to each other. Each of such equal straight lines...

Intuitions of the Mind: Inductively Investigated

James McCosh - Intuition - 1882 - 472 pages
...any length in a straight line ;" " There may be such a figure as a circle, that is, a plane figure such that all straight lines drawn from a certain point •within the figure are equal to one another ;" and that " A circle may be described from any centre at any distance from...

The Practical Teacher, Volume 1, Issue 1

Education - 1882 - 676 pages
...same direction. 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 (called the centre) within the figure to the circumference are equal to one another. A rhombus is a...

Class lessons on Euclid

Marianne Nops - 1882 - 278 pages
...the definition of a circle (def. 15). It is to the latter part that I wish to draw your attention, ' and is such that all straight lines drawn from a certain point (the centre) within the figure to the circumference are equal.' Here is a mode of measuring the lines...

Geometry for schools, comprising books i. and ii. of Euclid, with some ...

Euclides - 1883 - 176 pages
...is one not " enclosed." 11. A circle is a plane figure bounded by one line 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. 12. This point is called the centre of the circle. A radius...

The Elements of Euclid for the Use of Schools and Colleges: Comprising the ...

Euclid, Isaac Todhunter - Euclid's Elements - 1883 - 426 pages
...boundaries. 15. 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 : 16. And this point is called the centre of the circle. 17....

Syllabus of plane geometry, books 1-3, corresponding to Euclid, books 1-4 ...

Mathematical association - 1883 - 86 pages
...in that surface. DEF. 7. A plane figure is a portion of a plane surface enclosed by a line or lines. straight lines drawn from a certain point within the figure to the circumference are equal to one another. This point is called the centre of the circle. DEF. 9. A radius...