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The measure of an angle of a parallelogram is 12 degrees less than 3 times the measure of an adjacent angle. find the measure of all the interior angels of the parallelogram.

  • geometry -

    "adjacent" angles of a parallelogram add up to 180°.

    so let one angle be x
    then the adjacent is 3x-12

    solve for x

    x + 3x-12 = 180

    So now you have a pair of adjacent angles, take it from there.

  • geometry -


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