Answer :

Step-by-step explanation:

a cube.

that means all the sides are equally long.

and the volume of the cube is simply

side³ = 216 cm³

side = 6 cm

such a cube has 12 side edges :

4 for the square on the floor,

4 for the square on the top,

4 in the middle around it.

12×6 = 72 cm

so, there are 100-72 = 28 cm of wire left (after creating the cube).