Question

please help anybody who can

answer is like 3S,6S,8S​

Answer 1

Let say Side of of cube is 4a

Then Surface area of cube S = 6(4a)² = 96a²

Volume of cube = (4a)³ = 64a³

Cube cut in 64 cubes Hence volume of one small cube = 64a³/64 =

a³

Side of small cube = a

Surface area of small cube = 6a²

Surface area of 64 small cubes = 64 * 6a²

384a²

increase in surface area = 384a²-96a² = 288a²

% increase in surface area = (288a²/96a²) * 100

by 300% total surface area increase

A cube of each side 'a' is elongated in such a way that one side is 125 identical cubes are cut from a big cube and all the smaller.