In the given square ABCD, a line segment DE cuts the side BC at E and the diagonal AC at O such that ∠ COD=120∘. Find the measure of ∠ OEC.
In the figure ABCD is a square. A line segment DX cuts the side BC at X and the diagonal AC at O such that ∠COD = 105o and ∠OXC = y. Then y is equal to