A square piece of paper has a dot in its top right corner and is lying on a table. The square is folded along its diagonal, then rotated clockwise about its centre, and then finally unfolded, as shown.
The resulting figure is
, 2021
Pick one
Solution
We draw an unshaded dot to represent the location of the dot when it is on the other side of the sheet of paper being shown. Therefore, the dot moves as follows:
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