They are perpendicular lines.
A fancier word for that is "orthogonal"
Chat with our AI personalities
perpendicular lines
Lines that intersect to form a right angle are called PERPENDICULAR lines.Lines that intersect to form a right angle are perpendicular.
Form right angles
When two lines intersect to form a 90o angle, they are said to be perpendicular.
Perpendicular lines intersect and form a right angle. The lines on a square are perpendicular to each line that it touches.