Final answer:
The area of the square is 64 square units.
Step-by-step explanation:
The area of a square is found by squaring the length of one of its sides. In this case, we know that AC = 8. Since ABCD is a square, all sides are equal, so the length of each side is also 8. To find the area, we square the length of one side: 8 x 8 = 64.
Therefore, the area of the square is 64 square units.
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