\begin{definition}[Definition:Circumscribe/Circle around Polygon]
A circle is '''circumscribed around''' a polygon when its circumference passes through each of the vertices of that polygon:
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{{EuclidSaid}}
:''{{:Definition:Euclid's Definitions - Book IV/6 - Circle Circumscribed}}''
{{EuclidDefRefNocat|IV|6|Circle Circumscribed}}
Not all polygons can be circumscribed.
Here is an example of one that cannot:
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\end{definition}