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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 : XVI. "
The first six books of the Elements of Euclid, with numerous exercises - Σελίδα 2
των Euclides - 1853 - 147 σελίδες
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Elementary Physiography: An Introduction to the Study of Nature

John Thornton - 1899 - 427 σελίδες
...from a plane. The 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...

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
...said to be equal in area when they enclose equal portions of a plane surface. 15. A circle is a plane figure contained by one line, which is called 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 from...

XX Century Cyclopaedia and Atlas: Biography, History, Art, Science ..., Τόμος 2

1901
...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...

First Stage Practical Plane and Solid Geometry

G. F. Burn - 1903 - 272 σελίδες
...periphery is the boundary line of a circle or curved figure. Adjacent means adjoining. A circle is a plane figure contained by one line, which is called 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...

The Elements of Plane Geometry

Association for the Improvement of Geometrical Teaching - 1903
...between perpendiculars let fall on it from the extremities of the former. DEF. 41. A circlets a plane figure contained by one line, which is called the circumference, and is suck that all straight lines drawn from a certain point within the figure to the circumference are...

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

Euclid - 1904 - 456 σελίδες
...circle (i. Def. 15), may also be noted : 22J. A sphere is a solid figure contained by one surface, which is such that all straight lines drawn from a certain point within it to the surface are equal : this point is called the centre of the sphere. A radius of a sphere is...

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

William Hughes - 1908
...anything, and a Figure is that which is enclosed by one or more boundaries. Hence A Circle is a 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...

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

William Hughes - 1910
...anything, and a Figure is that which is enclosed by one or more boundaries. Hence A Circle is a plane figure contained by one line, which is called the...figure to the circumference are equal to one another. This point is the centre of the circle. A Diameter of a circle is a straight line drawn through the...

The Ontario High School Geometry: Theoretical

Alexander H. McDougall - 1910 - 302 σελίδες
...equal to each other is called a rhombus. A circle is a figure consisting of one closed curved line, called the circumference, and is such that all straight...lines drawn from a certain point within the figure, called the centre, to the circumference are equal to each other. In a circle a st. line drawn from...

Practical Geometry and Graphics

David Allan Low - 1912 - 448 σελίδες
...used it generally stands for " straight line." 2. The Circle — Definitions. — A circle is a plane figure contained by one line, which is called the...figure to the circumference are equal to one another : and this point is called the centre of the circle. . The meanings of the terms radius, diameter,...




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