thanks in advance

The figure can be partitioned into 8 triangles

So.....the sum of the interior angles  = 8 * 180  =  1440

So  

x =  1440 -  [97+ 126+320 + 125 + 95 + 120 + 280 +90+ 80]    =  107°

***Notice that the 80°  exteririor angle at the bottom means that the interior angle on the other side  = 360 - 80  =  280°