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26 November, 21:47

A parallelogram has one angle that measures 120 degrees. What are the measures of other three angles in the parallelogram?

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  1. 26 November, 21:56
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    60 degrees

    Step-by-step explanation:

    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.

    Makes sense?
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