SOLUTION: Parallelogram ABCD has one interior angle measuring 60°. What is the measure of the adjacent angle?

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Question 591598: Parallelogram ABCD has one interior angle measuring 60°. What is the measure of the adjacent angle?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Adjacent angles in any parallelogram are always supplementary.

So the adjacent angle is 180 - 60 = 120 degrees.