 | R. H. Warn, John G. Horner - Technology & Engineering - 2002 - 292 pages
...circumference are equal (Fig. 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...centre, and terminated both ways by the circumference (Fig. 4, AB). 15. A radius is & straight line drawn from the centre to the circumference (Fig. 4, CA).... | |
 | 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 called a chord.... | |
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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 : 16. And this point is called the centre... 
