Remember that the sum of the values of the interior angles in a four-sided shape is 360 degrees, given to us by the formula [tex] 180(n - 2) [/tex], where [tex] n [/tex] is the number of sides the shape has.
By this we can say:
[tex] x + 92 + 47 + 82 = 360 [/tex]
[tex] x + 221 = 360 [/tex]
[tex] x = 139 [/tex]
The value of our angle, [tex] x [/tex], is 139 degrees.
