New angle formed after rotating pipe I am having a bit of an issue with a problem (home maintenance) and would need to figure out a new angle formed after rotating a pipe. I will try to be as descriptive as possible:

This diagram shows the top view and the side view, so the pipe is both going down AND to the side, forming an angle of $35$ degree when seen from above.
My question would be, if I were to rotate the STATIONARY horizontal pipe $11$ degrees, what would the NEW angle formed be from above (it is $35$ degrees now, what would it become after I rotate that horizontal component 11 degrees on itself, position stays the same).
if possible, I would like two answers: the new angle after it is rotated clockwise and counterclockwise
Thank you very much

HINT:
$$ \tan \alpha = \tan \beta \cos \theta $$
where $  \alpha ,\beta ,\theta $ are projected angle, true apex angle of a cone generator and rotation from central plane respectively.Using the relation appropriately you can calculate all projected angles.
