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A hemispherical hollow of the largest possible diameter is scooped out of one face of a solid wooden cube of edge 7 cm. Find the total surface area of the remaining solid, in . Take π = 22/7.

Competition practiceAreas & Volumes
  • A294
  • B255.5
  • C332.5
  • D371

Step-by-Step Solution

Cube surface = . Scooping removes a flat circle of radius 3.5 cm, area , and exposes the curved hemispherical surface . Total .
Answer: C) 332.5

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