Which of the following statements is ALWAYS TRUE when parallel lines are cut by a transversal

In the diagram, what is the value of angle $x$?

Draw a line segment of length $8 \mathrm{cm}$ and construct a perpendicular bisector to the line segment using scale and compass.

Draw a line segment of length $7 \mathrm{cm}$ and construct a perpendicular bisector to the line segment using scale and compass.

Draw a line segment of length $5.6 \mathrm{cm}$ and construct a perpendicular bisector to the line segment using scale and compass.

Draw a line segment of length $10.4 \mathrm{cm}$ and construct a perpendicular bisector to the line segment using scale and compass.

Draw a line segment of $58 \mathrm{mm}$  length and construct a perpendicular bisector to the line segment using scale and compass.

Construct an angle of $60°$ using protractor and draw a bisector to the angle using ruler and compass.