 | Association for the Improvement of Geometrical Teaching - 1903 - 342 pages
...SECTION I. ELEMENTARY PROPERTIES. DEF. I. 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 faint wit/tin the figure to the circumference are equal to one another. This point is called the centre... | |
 | Euclid - Euclid's Elements - 1904 - 488 pages
...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... | |
 | William Hughes - 1908 - 942 pages
...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...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... | |
 | William Hughes - 1910 - 934 pages
...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 that all straight...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... | |
 | Alexander H. McDougall - Geometry - 1910 - 316 pages
...sides 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...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... | |
 | Charles Leonard-Stuart, George Jotham Hagar - Encyclopedias and dictionaries - 1912 - 666 pages
...forgot his glory in his devotion to pleasure. Circle, a plane figure contained by one Hue, which is called the circumference, and is such that all straight lines drawn from a certain point (the center) within the figure to the circumference are equal lo one another. Circle, Magic, u space... | |
 | Frederick Converse Beach, George Edwin Rines - Encyclopedias and dictionaries - 1912 - 916 pages
...Norma, and Triangulum Australe. Circle, in geometry, a plane ligure contained by one line, which is called the "circumference" 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. According to this definition... | |
 | Charles Morris - Encyclopedias and dictionaries - 1923 - 496 pages
...a watchspring before expanding. Circle ts'.r'kl)> * plane figure con"" tained by one line, which is called the circumference, and is such that all straight lines drawn from a certain point (the center) within the figure to the circumference are equal to one another. The properties of the... | |
 | D. Ponton - Mathematics - 1927 - 168 pages
...plane surface bounded by one or more lines. A Circle is a plane figure contained 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, and the straight line drawn from the centre to the circumference... | |
 | Carl Sandburg - 1926 - 528 pages
...(2) a line is length without breadth; (15) a circle is a plane figure contained by one line, which is called the circumference, and is such that all straight...figure to the circumference are equal to one another; (16) and this point is called the centre of the circle. Also it began with Axioms or Common Notions:... | |
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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. 
