Basically just find this angle,

I used the sine rule and got something like 50.8...etc, And when I rounded it off I got 51.

But I dont think its right, Anyone help, I think the red 29 that I've indicated is right because its a parallelogram but if its not then I know I went wrong, Any help on how to solve this.

Thanks

edit: calculated again, I think the right answer was 50*51