Disc
From Encyclopedia of Mathematics
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The part of the plane bounded by a circle and containing its centre. The area of a disc is $S=\pi r^2$, where $r$ is the radius of the circle.
How to Cite This Entry:
Disc. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Disc&oldid=31789
Disc. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Disc&oldid=31789