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Answer:
45 degree will be the answer
Explanation:
why because addition of angles of AOB, BOC AND COD is equal to get 180 degrees...since linear pair
LET angle AOB=angle COD =x
so, x+90+x=180
2x+90= 180
2x= 90
x= 45
[tex] Hope \: \: it \: \: helps!!![/tex]