Given a cube with edge b. Find the distance:
1) from point A1 to point C;
2) from point D1 to line BC;
3) from the line CC1 to the plane B1 BD;
4) between planes ABC and A1 B1 C1
![Given a cube with edge b Find the distance 1 from point A1 to point C 2 from point D1 to line BC 3 from the line CC1 to the plane B1 BD 4 between planes ABC and class=](https://us-static.z-dn.net/files/dbf/060bb77466de1fca55167eccb9a7f6c0.jpg)