Finding the Measure of Angle COD

Consider two lines, Line 1 and Line 2, that intersect at point O, forming angles AOB, BOC, COD, and DOA. If angle AOB measures $40^{ ext{°}}$ and angle BOC measures $x$ degrees, what is the measure of angle COD?

Note that the sum of all angles around point O equals $360^{ ext{°}}$.