What is the total surface area of a cube with edge length ?

Answer and explanation

Correct answer: C. 96 cm^2

  1. Step 1: A cube has 6 congruent square faces. Each face has area .
  2. Step 2: Compute total surface area: .
Answer
96 cm^2.
Why not the others: '64 cm^2' is the cube volume (); '128 cm^2' multiplies by 8 faces; '80 cm^2' computes .

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