Which of the following is equal to 3²? [A] 5 [B] 6 [C] 8 [D] 9 [E] 32

Which of the following is equal to three squared? Is it (A) five, (B) six, (C) eight, (D) nine, or (E) 32?

Squaring a number involves multiplying it by itself. We are trying to calculate the area of a three-by-three square. Three multiplied by three is equal to nine. The correct answer is therefore option (D). Three squared is equal to nine.

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