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  9. Q87

RRB NTPC 2022 · Question 87 of 110

The length of each edge of a cube is 2.6 cm. What is the total surface area (in cm²) of the cube?

  1. A39.96
  2. B40.56Correct
  3. C40.76
  4. D40.36

Answer: B. 40.56

Explanation

Edge of cube(a) =2.6 the total surface area of the cube=6a2 =6×2.6×2.6 =6.76×6 =40.56cm2

Source: RRB NTPC 2022 CBT 2 Previous Year Paper (12-June-2022) — ixambee compilation with answer key · reliable-secondary

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