Adjacent sides are perpendicular. Opposite sides are parallel.
In a square adjacent sides are perpendicular to each other and opposite sides are parallel to each other.
Not perpendicular. Parallel lines cannot be perpendicular to each other, so parallel is close to an opposite.
The perpendicular adjacent sides in the triangle would be 3 sides. It is the basically horizonstal line next to a vertical line(perpendicular) if it was parallel adjacent then only two side of triangle /\ <-- parallel
Yes. Adjacent sides in a cube are perpendicular and planes that are perpendicular to the same plane are parallel.
no, because parallel is opposite to perpendicular
the opposite of parallel lines are Perpendicular. A perpendicular angle or line is where there is a 90 degree on each and every side.
No, they are parallel.