\begin{definition}[Definition:Irrational Line Segment]
An '''irrational line segment''' is a line segment such that the square of whose length is an irrational number of units of area.
{{EuclidSaid}}
: ''{{:Definition:Euclid's Definitions - Book X/3 - Rational Line Segment}}''
{{EuclidDefRefNocat|X|3|Rational Line Segment}}
\end{definition}