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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: The Errors, by which Theon, Or Others, Have Long Ago ... - Σελίδα 3
των Robert Simson - 1762 - 466 σελίδες
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Practical Surveying: A Text-book for Students Preparing for Examinations Or ...

George William Usill - 1889 - 272 σελίδες
...circle is a plane figure contained 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. 8. Centre of Circle. — And this point is called the centre of the circle. 9. Diameter of Circle....

The Harpur Euclid: An Edition of Euclid's Elements

Edward Mann Langley, W. Seys Phillips - 1890 - 515 σελίδες
...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. 16. This point is called the centre of the circle, and the straight line drawn from the centre to the...

Mining: A Journal Devoted to the Interests of Mines and Mining Students, Τόμος 2

1894
...contained or bounded by one line which is called the circumference, and is such that all straight lines from a certain point within the figure to the circumference are equal to one another. This point is called the centre of the circle, as Fig. 19, o being the centre. Fig. u. Fig. 19. Fig....

Colliery Surveying: A Primer Designed for the Use of Students and Colliery ...

Thomas Aloysius O'Donahue - 1896 - 163 σελίδες
...contained or bounded by one line, which is called the circumference, and is such that all straight lines from a certain point within the figure to the circumference are equal to one another. This point is called the centre of the circle, as in Fig. 32, O being the centre. The radius of a circle...

Elementary Manual on Steam and the Steam Engine

Andrew Jamieson - 1897 - 290 σελίδες
...plane figure bounded by one line, which is called the circumference ; and is such, t/tat all straight lines drawn from, a certain point within the figure to the circumference are equal to one another. This point is called tlie centre of the circle. A DIAMETER of a circle is a straight line drawn through...

Mathematics: Mechanic's bids and estimates. Mensuration for beginners. Easy ...

Seymour Eaton - 1899 - 340 σελίδες
...a plane (flat) figure contained 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. This point is called the center of the circle. 6. The radius of a circle is any straight line drawn...

A Text-book of Euclid's Elements for the Use of Schools, Books I.-IV., Βιβλίο 1

Henry Sinclair Hall, Frederick Haller Stevens - 1900 - 304 σελίδες
...plane figure bounded 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 : this point is called the centre of the circle. NOTE. Circles which have the same centre are said...

First Stage Practical Plane and Solid Geometry

G. F. Burn - 1903 - 255 σελίδες
...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. And this point is called the centre of the circle. In Practical Geometry, the circumference of a circle...

A Text-book of Euclid's Elements for the Use of Schools, Βιβλίο 1

Euclid - 1904 - 456 σελίδες
...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 ; this point is called the centre of the circle. 16. A radius of a circle is a straight line drawn...

The advanced class-book of modern geography, by W. Hughes and J.F. Williams ...

William Hughes - 1908
...plane figure contained by one line, which is called the circumference, and is such thai all straight lines drawn from a certain point within the figure to the circumference are equal to one another. This point is Ihe centre of the circle. A Diameter of ft circle is a straight line drawn through the...