Question

total surface area of a cube is 1350sq.m. find its volume.

Answer 1

let the edge length the cube face be 'S'.
total surface area of the cube is 6(S^2).
given 6(S^2) =1350.
therefore, S^2 =1350/6=225.
so S = 15.
Now, volume of cube =S^3 = 15^3 =3375

Answer 2

surface area of a cube = 6 x²(x = length of 1 side)
i.e 1350 sq.m = 6 x ²
    x² = 1350/6 = 225 
x = √225 = 15 m
i.e length of one side = 15 m
 volume = x³ = 15³ = 3375 cm³