Find out how will the key figure (X) look like after rotation.

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On the basis of given figures in above question , we can see that
In each subsequent figure the design rotates through 90° anticlockwise.
Hence , figure ( 1 ) will come on the place of ? in question figure . As shown in answer figures .

NA

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Answer figure (2) can be formed from the cut-pieces given in the question figure.

As per the given figure in above question, it is clear that
In each subsequent figure the number of asterisks is increasing by one and the lower circle moves from left to right and vice-versa.
Clearly , figure ( 3 ) will come on the place of ? from answer figures .

Answer Figure (1) can be constructed from the parts given in question figure.

After opening the first fold it will look like as:
When it is unfolded completely it will look like as: