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waheguru
Is this correct
The missing angel is 67 degrees right?
The angles inside the shape appear to be 90, 90 and 113 by default (113 marked, 90 degree angles found due to 'parallel') so the last angle is 360-113-90-90 = 67 degrees. Correct!
When you have an enclosed shape with 4 corners the sum of all angles is always 360 degrees.