Question

The dimensions of a metallic cuboid are 100cm x 80 cm x 64 cm. It is melted and recast into a cube. find the surface area of the cube.

Answer 1

volume of cube = volume of cuboid
  
    a³ = l*b*h
    a³ =  100*80*64
    a = ∛512000
    a = 80cm

surface area of cube

6a²
6*80*80
38400cm²

Answer 2

Step-by-step explanation:

volume of cuboid = l*b*h

= 200 × 80 × 64

= 5 12000

volume of cube = volume of cuboid

side*3 = ³√512000

side = 80 cm

surface area of cube = 6 side*2

= 6 × 80 x 80

= 38 400 cm*2