a quadrilateral where each angle is a right angle
Perpendicular lines form right angles at their intersections.
perpendicular lines
They are said to be perpendicular lines.
Perpendicular lines intersect and form a right angle. The lines on a square are perpendicular to each line that it touches.
Perpendicular lines intersect to form right angles
Perpendicular lines form right angles at their intersections.
Perpendicular Lines form right angles at their point of intersection
perpendicular lines
Perpendicular lines
Perpendicular lines
Lines that intersect to form right angles at their point of intersection have slopes that are negative reciprocals.
Or right angles. Or, technically, straight angles as well
perpendicular lines
perpendicular lines! :D
These are called perpendicular lines.
The lines are called perpendicular lines.
Perpendicular.