SOLUTION: If one interior angle of a parallelogram measures 120 degrees, what are the measures of the other three interior angles?
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Question 317835: If one interior angle of a parallelogram measures 120 degrees, what are the measures of the other three interior angles? Answer by unlockmath(1688) (Show Source):
You can put this solution on YOUR website! Hello,
First we need to know how many degrees are in a parallelogram. We can use the formula 180(n-2) (n is the number of sides)
This works out to 180(4-2)=360 degrees.
Now we can set up the following equation as:
2(120)+2x=360 Subtract 240 from both sides to get:
2x=120 Divide by 2 to get:
x=60 degrees
Therefore we know 2 angles are each 120 degrees and the other 2 are 60 degrees.
Make sense?
RJ
www.math-unlock.com
