 | Association for the Improvement of Geometrical Teaching - Euclid's Elements - 1888 - 208 pages
...by one line, •which is called the circumference, and is such that all straight lines drawn front a certain point within the figure to the circumference are equal to one another. This point is called the centre of the circle. DEF. 2. A radius of a circle is a straight line drawn... | |
 | George William Usill - Surveying - 1889 - 306 pages
...circle is a plane figure contained by one line, which is called the circumference, and is such that all lines drawn from a certain point within the figure to the circumference are equal to one another. 8. Centre of Circle. — And this point is called the centre of the circle. 9. Diameter of Circle.... | |
 | James McCosh - Metaphysics - 1889 - 390 pages
...any length in a straight line ; " " There may be such a figure as a circle, that is, a plane figure such that all straight lines drawn from a certain point within the figure are equal to one another ; " and that " A circle may be described from any centre at any distance from... | |
 | Edward Mann Langley, W. Seys Phillips - 1890 - 538 pages
...enclosed by one or more boundaries. A figure contained by three Straight lines is called a triangle. 15. A circle is a plane figure contained by one line,...within the figure to the circumference are equal. 16. This point is called the centre of the circle, and the straight line drawn from the centre to the... | |
 | Euclid - Geometry - 1892 - 460 pages
...Book III. deals with the properties of Circles. DEFINITIONS. 1 . A circle is a plane figure bounded by one line, which is called the circumference, and...figure to the circumference are equal to one another: this point is called the centre of the circle. 2. A radius of a circle is a straight line drawn from... | |
 | 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.... | |
 | Thomas Aloysius O'Donahue - Mine surveying - 1896 - 186 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... | |
 | 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... | |
 | Seymour Eaton - 1899 - 362 pages
...the triangle is said to be equilateral. 5. A circle is a plane (flat) figure contained by one line called the circumference, and is such that all straight...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... | |
 | Euclid, Henry Sinclair Hall, Frederick Haller Stevens - Euclid's Elements - 1900 - 330 pages
...figure. Two figures are 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,...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... | |
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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. 
