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      Question

      A cube has edge 13 m. Find its length of diagonal,

      surface area and volume.
      A 16тИЪ3, 1,175 sq. m, 2,644 mt cube Correct Answer Incorrect Answer
      B 18тИЪ3, 1,172 sq. m, 1744 mt cube Correct Answer Incorrect Answer
      C 13тИЪ3, 1,014 sq. m, 2197 mt cube Correct Answer Incorrect Answer
      D 10тИЪ3, 1,177 sq. m, 2,744 mt cube Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Length of diagonal= √( 3 ) a = √( 3 )× 13 = 13√3 Surface area= 6a² = 6 × 13 × 13= 1014m^(2,) Volume of a cube= a³= 13³ = 2197 m^3

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