The volume of a cube is `512 cm^(3)`. Its total surface area is

Options

A. `256 cm^(2)`
B. `384 cm^(2)`
C. `512 cm^(2)`
D. `64 cm^(2)`

Answer

B

Explanation

`a^(3) = 512 = 8^(3) rArr a = 8cm`
Total surface area `= 6a^(2) = (6 xx 8 xx 8) cm^(2) = = 384 cm^(2)`