Oh, dude, you can use transformations like translations, rotations of 180 degrees, or a combination of reflections across the diagonal or perpendicular bisectors to carry the rectangle ABCD onto itself. It's like playing Tetris but with shapes, you know? So, yeah, those are the moves you can make to keep the rectangle where it belongs.
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There are the identity transformations:
In addition, it can be reflection about the perpendicular bisector of any side of the rectangle, or a rotation of 180 degrees about the centre of the rectangle.
In parallelogram ABCD, AC=BD. Is ABCD a rectangle?
Dihedral angle
30
Yes, it is.
Cylinder