Answer:
Cant you just type that in the calculator 18 times lol
Step-by-step explanation:
use a calculator
ANSWER
139°
EXPLANATION
One of the interior angle properties of a parallelogram is that adjacent interior angles are supplementary.
This means that, the adjacent interior angles add up to 180°.
If

Then

OR



The First person that wrote there answer is correct
Answer:
None.
Step-by-step explanation:
A triangle has 3 sides so any pair of parallel lines is impossible.