# Thread: Geamotry problem, proof, square between to parallel lines

1. ## Geamotry problem, proof, square between to parallel lines

Hello, really stuck on this problem, any help welcome

AB is parallel to CD, this distance between them is X

The square has side length X

Prove that the angle shown on the diagram is 45 degrees

Thank you
Rhys

2. ## Re: Geamotry problem, proof, square between to parallel lines

Can you give the diagram?

How is that?
Thanks

5. ## Re: Geamotry problem, proof, square between to parallel lines

You aren't given an angle of rotation for the square?

6. ## Re: Geamotry problem, proof, square between to parallel lines

thats all the information that is given i am afraid

7. ## Re: Geamotry problem, proof, square between to parallel lines

I could be wrong, but it seems to me the angle marked in the diagram depends on the angle of rotation of the square.

8. ## Re: Geamotry problem, proof, square between to parallel lines

it does not unfortunately, provided that a bit of the square is above and below the line then this will always be true