Question

If each edge of a cube is doubled,
(1) how many times will its surface area increase?
(ii) how many times will its volume increase?​

Answer 1

Answer:

It's surface area Will become 4 times

Its volume will become 8 times

Answer 2

Step-by-step explanation:

Surface area of cube=6a2

Is sides of cube is doubled 

New surface area is =6×4a2

Divide 2 by 1

=24a2surfaceareaofcube1surfaceareaofcube2=6a224a2=4times

Surface area increased four times 

Volume of cube= a3 

Volume of new cube= (2a)3

=8a3

Divide 2 by 1

volumeofcubevolumeofnewcube=a38a3

Volume increased 8 times