Let statements p, q, r, and s be as follow:

p: angle A and angle B are a linear pair.

q: angle A and angle B are supplementary angles.

r: angle A and angle B are adjacent angles.

s: angle A and angle B are adjacent and supplementary angles.



Substitute for p, q, r, or s, and write the statement below the way you would read it.

p ------> q

angle A and angle B are supplementary if and only if angle A and angle B are a linear pair
If angle A and angle B are a linear pair, then angle A and angle B are supplementary angles
If angle A and angle B are supplementary, then angle A and angle B are a linear pair
angle A and angle B are a linear pair if and only if angle A and angle B are supplementary