How do I calculate the angle of rotation?

dimanche 29 mars 2015

1. The problem statement, all variables and given/known data

We consider Rectangle Parallelepiped on a board and a=1m ; b=2m and c=3m.



The face a and b is considered touching the board.



there’s no sliding; we tilt the board so a is horizontal.



Q: Starting from which angle we can see a...



How do I calculate the angle of rotation?





How do I calculate the angle of rotation?

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