Question

The diagonal of a cube is 9√3 long its total surface area is

Answer 1

Given,

☛ Diagonal of cube = 9√3 units

To Find,

☛ Surface area

Solution

We know,

☛ Diagonal of cube = √3 × side

==> 9√3 = √3 × side

==> side = 9 units

Also,

☛ Surface area of a cube = 6 × side²

==> S.A = 6 × 9²

==> S.A = 6 × 81

==> S.A = 486 sq. units

∴ Surface area of the cube is 486 sq. units

Answer 2

Answer:

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