Question
Draw any line segment $\overline{\text{PQ}}$. Without measuring $\overline{\text{PQ}}$, construct a copy of $\overline{\text{PQ}}$.

Answer

 
 
Following steps will be followed to draw the given line segment $\overline{\text{PQ}}$and to construct a copy of $\overline{\text{PQ}}$-
$1.$Let $\overline{\text{PQ}}$ be the given line segment.

$2.$Adjust the compasses up to the length of $\overline{\text{PQ}}$

$3.$Draw any line $l$ and mark a point $A$ on it.
$4.$Put the pointer on point $A,$ and without changing the setting of compasses, draw an arc to cut the line segment at point $B.$

$\overline{\text{AB}}$ is the required line segment.
 

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