Question : Calculate the total surface area of the cube of side 45 m.
Option 1: 12150 m2
Option 2: 1213 m2
Option 3: 1342 m2
Option 4: 2341 m2
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Correct Answer: 12150 m 2
Solution : Given: The cube of side 45 m. The total surface area of the cube of side $a$ is $6a^2=6\times (45)^2=12150$ m 2 Hence, the correct answer is 12150 m 2 .
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