"Which diagram below shows the first step in parallel line construction on a point outside a line?
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Answer
2nd diagram
Explanation.
When contraction a parallel line from a point say N, outside the line, the first thing is to draw a line from point N to the that line.
The point where this line from N intersect with line, name it say P. From this point you can use the properties of angles in a parallel lines to construct the parallel line.
The line NP can act like a transverse of the two parallel lines. The diagram 2 shows first step.
The steps for the construction of a parallel line on a point outside a line is as follows:
The correct figure is attached to the answer.