 | Mathematical association - 1884 - 146 pages
...the circumference are equal to one another. This point is called the centre of the circle. DEF. 42. A radius of a circle is a straight line drawn from the centre to the circumference. DEF. 43. A diameter of a circle is a straight line drawn through the centre and... | |
 | Association for the improvement of geometrical teaching - Geometry, Modern - 1884 - 150 pages
...the circumference are equal to one another. This point is called the centre of the circle. DEF. 42. A radius of a circle is a straight line drawn from the centre to the circumference. DEF. 43. A diameter of a circle is a straight line drawn through the centre and... | |
 | Euclides - 1884 - 434 pages
...points on its circumference. The reason for this will appear later on. 17. A radius (plural, radii) of a circle is a straight line drawn from the centre to the circumference. Thus OA, OB, OC, &c. are radii of the circle ACF. 18. A diameter of a circle is... | |
 | Thomas Henry Eagles - Conic sections - 1885 - 404 pages
...to the circumference are equal to one another : and uuis point is called the centre of the circle". A radius of a circle is a straight line drawn from the centre to the circumference, and therefore by the above definition all radii of a circle are equal. Hence a circle... | |
 | Christian Brothers - Arithmetic - 1888 - 484 pages
...straight line passing through the centre, and terminating at both ends in the circumference. 261. The Radius of a circle is a straight line drawn from the centre to any point in the circumference. The radius is one-half the diameter. CASE I. 262. To find the circumference of... | |
 | George William Usill - Surveying - 1889 - 306 pages
...straight line drawn through the centre, and terminated both ways by the circumference. Note. — The radius of a circle is a straight line drawn from the centre to the circumference. 10. Semi-circle. — A semi-circle is a figure contained by a diameter, and the... | |
 | Euclid - Geometry - 1892 - 460 pages
...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 the centre to the circumference. 3. A diameter of a circle is a straight line drawn through the centre, and terminated... | |
 | Mines and mineral resources - 1894 - 330 pages
...centre of the circle, as Fig. 19, o being the centre. Fig. u. Fig. 19. Fig. 20. Fig. 21. Fig. 22. The Radius of a circle is a straight line drawn from the centre to the circumference, as C, Fig. 19. The IHameler of a circle is a straight lintdrawn through the centre,... | |
 | Thomas Aloysius O'Donahue - Mine surveying - 1896 - 186 pages
...one another. This point is called the centre of the circle, as in Fig. 32, O being the centre. The radius of a circle is a straight line drawn from the centre to the circumference, as OC (Fig. 32). The diameter of a circle is a straight line drawn through the centre,... | |
 | Philip John Davies - Plumbing - 1896 - 488 pages
...returning from whence it started, as Fig. 1,102. The circumference is known as the boundary line. The radius of a circle is a straight line drawn from the centre to the circumference, as at A, B, Fig. 1,102. The diameter of a circle is a line drawn through the centre,... | |
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A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. 
