Answer:
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The answer is 4.
Step-by-step explanation:
A=4.5
B=0.5
4.5-0.5=4
35
Each corner angle of a square is 90 degrees.
This means every 90 degree rotation ( Counter clockwise) would move A to the next corner.
Since B is the corner below A, it would take a 90 degree rotation fr A to map on B.
