Lesson eLearning

A cube has a volume of . Find its total surface area.

medium 2 marks Class 8 · Mathematics · Cubes and Cube Roots
Answer
864 cm

The correct answer is 864 cm — 5. The required total surface area is 864 cm.

Step-by-step solution

  1. 1. Recognise that volume of a cube is where is side length.
  2. 2. Solve for from : .
  3. 3. Use the surface area formula .
  4. 4. Compute .
  5. 5. The required total surface area is 864 cm.
Common mistake: Using square root instead of cube root to find side length

Concept tested: Cube volume to surface area conversion

Published · How this solution was prepared and checked

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