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What's the surface area for all these??

What's the surface area for all these??-example-1
What's the surface area for all these??-example-1
What's the surface area for all these??-example-2

1 Answer

2 votes

Answer:

the surface area of the square is "378"

Explanation:

2×(9×9 + 9×6 + 9×6) = 378

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