Answers

  • Brainly User
2014-10-28T20:31:38+05:30
For an edge length l the diagonal is l√3. Here diagonal length is 6√3, then its edge length is 6. Surface area of cube is 6l^2 i.e. 6(6^2)=216 Answer: 216 cubic centimetres
0
2014-10-28T20:34:53+05:30
Given,
length of diagonal of cube =6√3
then the length of side =√(3√3)
total surface are of cube = 6a²
                                    = 6[√(3√3)]²
                                    =6×3√3
                                    =18√3
0