Perpendicular
The lines that intersect to Form A right triangle are called Perpendicular Lines; the resulting meeting point of these two lines is called the vertex of the angle.
They are perpendicular lines that intersect at right angles or 90 degrees
Two lines that intersect and form 90-degree angles (right angles) are "perpendicular" to each other. You would call them "perpendicular lines."
intersecting lines
parallel lines
parallel lines
Skew lines.
Perpendicular lines.
Parallel lines.
skewed lines
A line is orthogonal to another if it is at 90° to it. You can call lines that intersect at 90° orthogonallines.You can also say that the lines form a right angle.