Multiple choice

The volume of a cube is numerically equal to the sum of its edges. What is its total surface area in square units?

  1. 66

  2. 183

  3. 36

  4. 72
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let edge of cube be 'a'. Volume = a³. Sum of edges = 12a (12 edges each of length a). Given a³ = 12a, so a² = 12 (a ≠ 0). Total surface area = 6a² = 6 × 12 = 72 square units. Option D is correct.

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