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Constructing a parallel line

In this exercise you are given a line

$AB$ and a point

$X$ not on the line. Your task is to construct a line through

$X$ which is parallel to

$AB$ .

You will find the transferring an angle exercise very useful.

The diagram contains an example of a point

$C$ not on the line

$AB$ such that the orange line through

$C$ is parallel to

$AB$

Hint. This exercise is explained in Euclid Book I, Proposition 31.