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FMO 2026 - Grade 8 - National - Paper 04 Question 18

FMO · FMO 2026 - Grade 8 - National - Paper 04

Question 18

Vivian has 8 identical cubes. She wants to combine them to get a cuboid with surface area denoted as S. If the minimum value of S is 576 cm², find the greatest value of S.

Question illustration



Editorial packing convention: all eight cubes are used, aligned face to face without gaps or overlaps to make one solid cuboid.
  1. 672 cm²
  2. 700 cm²
  3. 768 cm²
  4. 816 cm²
  5. None of the above