Question

what will happen to volume of a cube , if its egde is doubled

Answer 1

Volume of a cube =a3=a3

=a×a×a=a×a×a

Each side is doubled

New volume =2a×2a×2a=2a×2a×2a

=8a3=8a3

Answer : 8a3

Answer 2

when edge is doubled then side becomes 2a
then volume = a³ = (2a)³ = 8a³