The three angles of a quadrilateral are 76°, 54° and 108°. Find the
measure fourth angle.
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76+54+108+x = 360
238+x = 360
x = 360-238
x = 122°
Answered by
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sum of the interior angles of the quadrilateral is 360 degree
76+54+108=238
360-238=122 degree
the fourth angle is 122 degree
quadrilaterals sum
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