Given that PQ and RS intersect to form four right angles, then they form an angle of 90 degrees, this implies that: if the meet at point O, then; ∠POR=∠POS=∠QOS=∠ROQ=90° Therefore the correct statement is: PQ is perpendicular to RS that is to mean: PQ⊥RS The answer is C.
Given: PQ and RS intersect to form four right angles.
Option C is correct.i.e., PQ ⊥ RS
Because Perpendicular means a line intersecting another at right angles and making 4 right angles between them. Here, also PQ intersect with RS at right angles and makes 4 right angle