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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. "
Gradations in Euclid : books i. and ii., with an explanatory preface [&c ... - Page 180
by Euclides - 1858
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Practical Plane and Solid Geometry, Including Graphic Arithmetic

Isaac Hammond Morris - Geometry, Plane - 1890 - 440 pages
...undecagon has eleven sides. Aa octagon has eight sides. A duodecagon has twelve sides. THE CIRCLE, 33. A circle is a plane figure contained by one line, called the circumference. Every part of the circumference is equally distant from a point within the circle, which is called...
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Mining: A Journal Devoted to the Interests of Mines and Mining ..., Volume 2

Mines and mineral resources - 1894 - 330 pages
...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....
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Colliery Surveying: A Primer Designed for the Use of Students and Colliery ...

Thomas Aloysius O'Donahue - Mine surveying - 1896 - 184 pages
...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...
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Elementary Manual on Steam and the Steam Engine

Andrew Jamieson - Steam - 1897 - 362 pages
...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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The Public School Arithmetic: Based on McLellan & Dewey's "Psychology of Number"

James Alexander McLellan, Albert Flintoft Ames - Arithmetic - 1897 - 368 pages
...and in determining latitude, longitude, direction, the position of vessels at sea, and the like. 173. A Circle is a plane figure contained by one line called the circumference, all points of which are equally distant from a point within it called the centre. One-half of the circumference...
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The Public School Arithmetic: Based on McLellan & Dewey's "Psychology of Number"

James Alexander McLellan, Albert Flintoft Ames - Arithmetic - 1897 - 368 pages
...and in determining latitude, longitude, direction, the position of vessels at sea, and the like. 173. A Circle is a plane figure contained by one line called the circumference, all points of which are equally distant from a point within it called the centre. One-half of the circumference...
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Mathematics: Mechanic's bids and estimates. Mensuration for beginners. Easy ...

Seymour Eaton - 1899 - 362 pages
...the lines are of equal length the triangle is said to be equilateral. 5. A circle is a plane (flat) figure contained by one line called the circumference,...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...
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Elementary Physiography: An Introduction to the Study of Nature

John Thornton - Physical geography - 1899 - 460 pages
...intersection of two planes is a straight line. A circle is a plane figure bounded by one line, which is called the circumference, and is such that all straight lines drawn from its centre (radii) to the circumference are equal. A sphere, or globe, is a round body bounded by a...
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A Text-book of Euclid's Elements for the Use of Schools. Books I.-VI ..., Book 1

Euclid, Henry Sinclair Hall, Frederick Haller Stevens - Euclid's Elements - 1900 - 330 pages
...definitions are repeated from Book I. I. Def. 15. A circle is a plane figure bounded by one line, which is called the circumference, and is such that all straight...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...
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XX Century Cyclopaedia and Atlas: Biography, History, Art, Science ..., Volume 2

1901 - 530 pages
...before expanding. Circle is a plane figure contained by one Hue, which is tailed the rircumferenrt, and is such that all straight lines drawn from a certain point (the centre) within the figure to the circumference are equal to one another. The properties of the...
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