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 : XVI.
The first six books of the Elements of Euclid, with numerous exercises - Page 2
by Euclides - 1853 - 147 pages

## Primer of geometry

Francis Cuthbertson (geometer.) - 1876 - 102 pages
...triangles are then said to be equal in all respects. A circle is a plane figure bounded by one line, called the circumference, and is such that all straight...within the figure to the circumference are equal. That point is called the centre, and those straight lines are called radii. STRAIGHT LINES, ANGLES,...

## Elements of geometry, based on Euclid, books i-iii

Edward Atkins - 1876 - 130 pages
...which is enclosed by one or moro boundaries. 15. A circle is a plane figure contained by one lincj which is called the circumference, and is such, that...lines drawn from a certain point within the figure to tho circumference are equal to one another. 16. And this point is called the centre of the circle,...

## Syllabus of Plane Geometry: (corresponding to Euclid, Books I-VI) ...

...surface enclosed by a line or lines. DEF. 8. A circle is a plane figure contained by one line, which 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 of a circle is a straight line drawn...

## Nature, Volume 13

Sir Norman Lockyer - Electronic journals - 1876 - 924 pages
...bad as the common school-boy definition : " a circle is a plain figure bounded by one straight line, and is such that all straight lines drawn from a certain point in its centre to the circumference are equal ; " but it is not what we should expect in a text-book...

## Nature, Volume 13

Sir Norman Lockyer - Electronic journals - 1876 - 558 pages
...bad as the common school-boy definition : " a circle is a plain figure bounded by one straight line, and is such that all straight lines drawn from a certain point in its centre to the circumference are equal ; " but it is not what we should expect in a text-book...

## Elements of geometry, based on Euclid, book i

Edward Atkins - 1877 - 72 pages
...anything. 14. A figure is that which is enclosed by one or more boundaries. 15. A circle is a plane figure contained by one line, which is called the...figure to the circumference are equal to one another. 16. And this point is called the centre of the circle, [and any straight line drawn from the centre...

## Natural philosophy for beginners

Isaac Todhunter - 1877 - 442 pages
...angles. 18. A square is a rectangle with all its sides equal. 19. A circle is a plane figure bounded by one line which is called the circumference, and...figure to the circumference are equal to one another : this point is called the centre of the circle. A radius of a circle is a straight line drawn from...

## Euclid, book i., propositions i. to xxvi., with exercises and alternative ...

Euclides - 1877 - 58 pages
...is that which is inclosed by one or more lines. 11. A circle is a plane figure contained by one line (called the circumference), and is such that all straight...drawn from a certain point within the figure to the eircumferencu are equal to one another. 12 And this point is called the centre of the circle. 13. Rectilineal...