Question

if diagonalof a cube is 12 cm, then its volume in cubic cm

Answer 1

diagonal = √3 a = 12 =>a = 12/√3=>a = 4√3 cm
volume of cube = a ³ = (4 √3 )³= 64 × 3 √3 = 192√3 cm ³

Answer 2

let the diagonal be d and side be x
so d =√3x
x=d/√3
=12/√3 =4√3
so volume =64×3√3=332.5cm^3