If they form 90 degrees between them
Perpendicular lines are two lines that intersect to form four right angles.
If two lines intersect at right angles then they are perpendicular!
perpendicular lines.
perpendicular lines
Perpendicular
The contrapositive to the statement, "if two lines intersect to form right angles, then they are perpendicular," is "if two lines are not perpendicular, then they do not form right angles."
When two lines intersect at a right angle, they are "perpendicular"
two lines that are perpendicular form right angles
Perpendicular lines are two lines that intersect to form four right angles.
Mutually perpendicular.
"perpendicular"
If two lines intersect at right angles then they are perpendicular!
Two lines or segments that form a right angle are said to be perpendicular.
perpendicular lines
perpendicular lines
Perpendicular lines
perpendicular lines