 | Association for the Improvement of Geometrical Teaching - 1903 - 342 pages
...intercepted 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... | |
 | 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
...the extremity of 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... | |
 | William Hughes - 1910 - 934 pages
...the extremity of 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,...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
...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... | |
 | David Allan Low - Geometrical drawing - 1912 - 468 pages
...term " line " is used it generally stands for " straight line." 2. The Circle — Definitions. — A circle is a plane figure contained by one line,...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,... | |
 | Frederick Converse Beach, George Edwin Rines - Encyclopedias and dictionaries - 1912 - 916 pages
...Apus, Musca, Centaurus , Lupus, Norma, and Triangulum Australe. Circle, in geometry, a plane ligure contained by one line, which is called the "circumference"...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 Leonard-Stuart, George Jotham Hagar - Encyclopedias and dictionaries - 1912 - 666 pages
...year, he 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... | |
 | Charles Morris - Encyclopedias and dictionaries - 1923 - 496 pages
...that are rolled up like a watchspring before expanding. Circle ts'.r'kl)> * plane figure con"" tained by one line, which is called the circumference, and...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
...contains two right angles. A Plane Figure is any portion of a plane surface bounded by one or more lines. 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, and the straight line drawn from the centre to the circumference... | |
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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. 
