Question 1120552
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x + 4x = 180 degrees.


5x = 180 degrees.


x = {{{180/5}}} = 36 degrees is the smaller angle.


The larger angle is  4*36 = 144 degrees.


<U>Check</U>.  36 + 144 = 180 degrees.    ! Correct !
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For your info: supplementary angles sum up to 180 degrees.