The origin.
perpendicular
Perpendicular lines cross each other at right angles
Perpendicular Lines
Two lines that cross each other are called "intersecting lines." At the point where they cross, they form angles. If the lines are not parallel, they will intersect at one specific point in a plane.
They are perpendicular lines
perpendicular lines
A number plane is made with two lines which cross at right angles.
right angles where they cross
Two lines are perpendicular if they cross at 90 degree angles.
perpendicular lines
Perpendicular lines are lines that cross at right angles. Intersecting lines can cross at any angle.
intersecting lines...