Question

if the edge of a cube is doubled than its SA increase by ______?​

Answer 1

Answer:

As we know that the cube has 6 sides and each side represents the square. Let the side length of the cube be a unit. Now it is given that the edge of the cube is doubled. So now the edge of the cube becomes 2a.

Answer 2

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$\color{violet}{❥ \: 4 \: }$

Explanation:-

Let the edge of cube be a .

We know,SA= 6a²

When edge is doubled ,it becomes 2a

So,the new SA = 6(2a)² = 6×4a² =4×original SA

Therefore, the SA will increase by 4

hope it helps.... :)