Right angles.
They are perpendicular lines that meet to form right angles
Lines that always form right angles when they meet are perpendicular lines. The first line is perpendicular to a second line.
Perpendicular lines.
Perpendicular lines are lines that meet to form a right angle.
perpendicular lines
Perpendicular lines.
perpendicular lines
Lines that are perpendicuar meet at 90 degrees
They are mutually perpendicular lines.
A line is perpendicular if it meets at 90o.
perpendicular
Perpendicular.?