Question

find the volume of a cube one face of which has an area of 64 CM square

Answer 1

volume of cube = (side length )³
a/c to question,
    area of one face of cube = area of square = 64 cm²
      (side length )² = (8cm)²
     side length = 8 cm

hence, volume of cube = (side length )³
                                    = (8cm)³ = 512 cm³