Question

a metallic cube of edge 8cm is melted and cast into eight equal cubes. find total surface area of the eight new cubes

Answer 1

since,,, everything will change but volume remains same
therefore
vol of cube =8*volume of cube
8*8*8=8*v
v=64
v=aaa
a=8
Now surface area =6a
=6*8=48cm^2