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disk

File:Circle-withsegments.svg · Wikimedia Commons · See Wikimedia Commons

EntityQ238231· pop 68· linked from 268 articles

Also known as disc, filled circle, circular area

plane figure, bounded by circle

AI overview

A disk is a flat, round shape that includes everything inside a circle, including the circle's edge itself. It matters in mathematics and everyday life because many objects—from plates to wheels to coins—are disk-shaped, making it a fundamental form for understanding geometry and designing practical things.

AI-generated from the Wikipedia summary — may contain errors.

~8 min read

Encyclopedic overview

Disk with   circumference C

diameter D

Excerpted from Wikipedia’s “disk” article, available under the CC BY-SA 4.0 licence.

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