The two lines intersect at an acute angle.

The two lines are perpendicular to each other.

The soldiers bravely stood on the firing line.

Every cloud has a silver lining.

The dasher sprinted towards the finish line.

Every cloud has a silver lining.

The dauphin was next in line to the French throne.

The article has a total of 20 lines.

The two lines are orthogonal to each other.

The railway line in this area is single-track.