| 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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