If two lines intersect at right angles then they are perpendicular!
Perpendicular lines intersect at right angles to each other.
Perpendicular lines intersect to form right (90 degree) angles every time.
Perpendicular lines form right angles when they intersect.
Perpendicular lines intersect to form right angles
Perpendicular lines
Lines that intersect right angles (ninety-degree angles) are described as perpendicular.
Perpendicular lines intersect at right angles.
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."
Perpendicular lines intersect to form right angles.
Perpendicular lines intersect each other at right angles
"perpendicular lines"