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.
What we are looking for here is whether or not these two angles are congruent or equal to each other. If they are, then the lines are parallel. So if both of these angles measured 60 degrees, then you know that the lines are parallel.