Respuesta :
The Answer is option C copying an angle.
Parallel lines are the lines with same slope
[tex]\rm {slope\; of\; a\; line} =\tan\theta[/tex]
[tex]y= \rm{mx+c ....(1)}\\m = Slope\; of\; the \; line\\ c= intercept \; on\; y\; axis[/tex]
Equation (1) Standard form of represents equation of line.
[tex]\rm y_1= \rm mx_1 + c_1......(2)\\\\\rm y_2= \rm mx_2 + c_2......(3)\\\\\\[/tex]
So lines that are parallel to each other have same slope or same angle [tex]\theta[/tex].
Equations (2) and (3) are equations of parallel lines.
Parallel lines never intersect each other it means they don't have any common solution.
So we can copy the angle with respect to a reference axis in order to draw parallel lines.
For more information please refer to the link below
https://brainly.com/question/16701300