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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 : 16.
The Elements of Euclid, the parts read in the University of Cambridge [book ... - Página 2
por Euclides - 1846
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## The first six books of the Elements of Euclid, and propositions i.-xxi. of ...

Euclides - 1885 - 340 páginas
...circle is a plane figure formed by a curved line called the circumference, and is such that all right lines drawn from a certain point within the figure to the circumference are equal to one another. This point is called the centre. xxxm. A radius of a circle is any right line drawn from the centre...
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## The Oldhallian

Wellington Salop, old hall sch - 1885 - 204 páginas
...only length and breadth." We next discover that "a circle is a figure contained by straight lines, and is such that all straight lines drawn from a certain point within that circle are equal." We are sorry to say that the inventor of this forgot to draw a figure. We have...
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## The Elements of Plane Geometry:pPart I(corresponding to Euclid Books I.-II ...

Association for the Improvement of Geometrical Teaching - 1888 - 208 páginas
...is equal to the rectangle AP, PB together with the square on PQ. DEFINITIONS , OF BOOK III. DEF. i. A circle is a plane figure contained by one line,...circumference, and is such that all straight lines drawn front a certain point within the figure to the circumference are equal to one another. This point is...
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## Practical Surveying: A Text-book for Students Preparing for Examinations Or ...

George William Usill - 1889 - 306 páginas
...greater than a right angle. 6. Acute Angle. — An acute angle is less than a right angle. 7. Circle. — A circle is a plane figure contained by one line,...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....
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## First and Fundamental Truths: Being a Treatise on Metaphysics

James McCosh - 1889 - 390 páginas
...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...
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## The Harpur Euclid: An Edition of Euclid's Elements

Edward Mann Langley, W. Seys Phillips - 1890 - 538 páginas
...enclosed by one or more boundaries. A figure contained by three Straight lines is called a triangle. 15. A circle is a plane figure contained by one line,...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...
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## The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ...

Euclid - 1892 - 460 páginas
...Two figures are said to be equal in area, when they enclose equal portions of a plane surface. 11. A circle is a plane figure contained by one line,...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...
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## Mining: A Journal Devoted to the Interests of Mines and Mining ..., Volumen2

1894 - 330 páginas
...all its sides equal, and its angles equal. rig. IB. A Circle is a plane figure 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...
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## Colliery Surveying: A Primer Designed for the Use of Students and Colliery ...

Thomas Aloysius O'Donahue - 1896 - 186 páginas
...which has all its sides equal, and its angles equal. A circle is a plane figure 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...
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## Elementary Manual on Steam and the Steam Engine

Andrew Jamieson - 1897 - 362 páginas
...CIRCLE is a 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...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...
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