 | Thomas Franklin Holgate - Geometry - 1901 - 462 pages
...Any straight line drawn from the centre to a point on the sphere is called a radius of the sphere. A straight line drawn through the centre and terminated both ways by the sphere is called a diameter of the sphere. The length of a diameter is twice the length of a radius.... | |
 | Euclid - Euclid's Elements - 1904 - 488 pages
...a straight line drawn from the centre to the circumference. I. Def. 17. A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. I. Def. 18. A semicircle is the figure bounded by a diameter of a circle and the part... | |
 | Henry Sinclair Hall - 1908 - 286 pages
...the circumference. It follows that all radii of a circle are equal. 3. A diameter of a circle is a straight line drawn through the centre and terminated both ways by the circumference. 4. A semi-circle is the figure bounded by a diameter of a circle and the part of the... | |
 | Thomas Aloysius O'Donahue - Mine surveying - 1911 - 288 pages
...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, and terminated both ways by the circumference, as AB (Fig. 32). An arc of a circle is any part of the circumference, as EDF (Fig. 32).... | |
 | Edward L. Bates, Frederick Charlesworth - Geometry - 1912 - 648 pages
...is employed to make such points conspicuous and more easily located by the reader. A diameter is a straight line drawn through the centre, and terminated both ways by the circumference. FIG. 1. Thus, in Fig. 2, O is the centre of the circle; OA, OB, OC, are radii; AOB is... | |
 | R. H. Warn, John G. Horner - Crafts & Hobbies - 2002 - 292 pages
...4). 13. And this point is called the centre of the circle (Fig. 4,0). 14. A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference (Fig. 4, AB). 15. A radius is & straight line drawn from the centre to the circumference... | |
 | N.M. Kapoor - 2006 - 886 pages
...circumference. A straight line drawn from the centre to the circumference is called a radius. (Plural radii) A straight line drawn through the centre and terminated both ways by the circumference is called a diameter. A straight line joining any two points on the circumference is... | |
| |
... is such, that all straight lines drawn from a certain point within the figure to the circumference are equal to one another : 16. And this point is called the centre of the circle. 
