Multiple choice

If the total surface area of a cube is 54 m2, then its lateral surface area is equal to

  1. 81 m2

  2. 24 m2

  3. 36 m2

  4. 108 m2
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Total surface area of a cube = 6a^2 = 54, so a^2 = 9, a = 3. Lateral surface area = 4a^2 = 4 * 9 = 36.

AI explanation

The total surface area of a cube is 6 times the square of its side, so 6 times s squared equals 54, making the side length 3 meters. The lateral surface area formula is 4 times the square of the side. Multiplying 4 by 3 squared gives a lateral surface area of 36 square meters. The lateral surface area is 36 square meters.

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