There are a variety of gaslighting techniques that an abusive partner might use: Withholding: the abusive partner pretends not to understand or refuses to listen. Ex. Countering: the abusive partner questions the victimâs memory of events, even when the victim remembers them accurately.
If two lines are perpendicular, then they meet to form. right angles. Theorem 1.7.1: If two lines meet to form a right angle, then these lines are perpendicular. âif and only ifâ. âiffâ. Theorem 1.7.2: If two angles are complementary to the same angle (or to. congruent angles) then these angles are congruent.
Theorem 2: If two coplanar lines are perpendicular to a third line, then they are parallel to each other: This is a special case of the more general result that when two coplanar lines are cut by a transversal and corresponding angles are equal, then the lines are parallel.