Hi. It's my first time and hoping someone can help me solve for the angle (see attached picture). I've been at it for hours and have just turned my brain to

mush.

The sketch may be unclear so the dimensions on top are 0.882, right is 0.705 and Radii are 0.380.

Thanks!.

ohh yeah, and i'd really like to know how it was solved

THanks.