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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.
The Elements of Euclid, containing the first six books, with a selection of ... - Σελίδα 1
των Euclides - 1874
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## Euclid, book i., propositions i. to xxvi., with exercises and alternative ...

Euclides - 1877 - 58 σελίδες
...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...

## The Globe Encyclopaedia of Universal Information, Τόμος 2

John Merry Ross - 1877 - 625 σελίδες
...I4th Book of the Metamorphoses. Cir'cle, according to Euclid, is a plain figure contained by one line, called the circumference^ and is such that all straight lines drawn from a certain point wifehin the figure to the circumference are equal to one another ; this point is the centre. It is...

## Elementary geometry

James Maurice Wilson - 1878 - 450 σελίδες
...three given points is constant is a circle. BOOK III, THE CIRCLE. SECTION I. ELEMENTARY PROPERTIES. A circle is a plane figure contained by one line,...is called the circumference, and is such that all the lines drawn from a certain point within the figure to the circumference are equal to one another....

## The elements of plane geometry, from the Sansk. text of Ayra Bhatta, ed. by ...

Āryabhaṭa - 1878 - 100 σελίδες
...that which is enclosed by one or moro boundaries. VI. A circle is a plane figure bounded by one lino, which is called the circumference, and is such that...all straight lines drawn from a certain point within it to tho circumference, are equal to one another. [•Figure ABCI) : Prop. 1. is a circle.] VII. And...

## Moffatt's pupil teachers' course (ed. by T. Page). Candidates, 2nd (-4th) year

Moffatt and Paige - 1879 - 426 σελίδες
...is the extremity of 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,...And this point is called the centre of the circle. 1 7. A diameter of a circle is a straight line drawn through the centre and terminated both ways by...

## Euclid, books i. & ii., with notes, examples, and explanations, by a late ...

Euclides - 1879 - 146 σελίδες
...is the extremity of 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 circumference, and is such that ? straight lines drawn from a certain point within the figure to the circumference, are equal to one...

## The Elements of Plane and Solid Geometry: With Chapters on Mensuration and ...

Isaac Sharpless - 1879 - 282 σελίδες
...quadrilateral is a straight line joining its opposite angles. Circ1e. 30. A circle is a plane figure, enclosed by one line, which is called the circumference, and is such that all lines drawn from a certain point within the figure to the circumference are equal to one another. 31....

## Elements of geometry, containing books i. to vi.and portions of books xi ...

Euclides, James Hamblin Smith - 1879 - 376 σελίδες
...is one which is less than a right angle. ^ XIII. A CIRCLE is a plane figure contained by one lino, which is called the CIRCUMFERENCE, and is such, that all straight lines drawn to the circumference from a certain point (called the CENTRE) within the figure are equal to one another....

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

T S. Taylor - 1880 - 152 σελίδες
...as above, and using the letters affixed to these lines instead of A, J3, C, D. ff Definitions. — A circle is a plane figure contained by one line,...within the figure to the circumference are equal. And that point is called the centre of the circle. General Enunciation. From the greater of two given...

## The engineers' manual of the Local marine examinations

Thomas Liddell Ainsley - 1880 - 866 σελίδες
...those which are called curvilinear, being bounded not by straight lines but by curved lines. Def.—A circle is a plane figure contained by one line, which...is called the circumference, and is such that all strait lines drawn from its centre to the circumference are equal to one another. The straight line...