P and Q are then moved, but the result remains the same. Find the new positions of P and Q.

The movie provides an intriguing view of the rotations:

The centres move to (4, 1) and (3, 2).

The centres move to (3, 1) and (3, 3).

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The centres move to (4, 1) and (3, 2), as in (A), but we take a different view.

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