Question

PLZ HELP I DONT UNDER STAND!!

Two larger cubes are made out of unit cubes. Cube A is 2 by 2 by 2. Cube B is 4 by 4 by 4. The side length of Cube B is twice that of Cube A.

Is the surface area of Cube B also twice that of Cube A? Explain or show your reasoning.
Is the volume of Cube B also twice that of Cube A? Explain or show your reasoning.

Answer 1

No

Step-by-step explanation:

Cube A surface area is : 2x2x6 (because there are 6 faces) = 24

Cube B surface area is 4x4x6 = 96

The surface area of the cube B isn't the twice of cube A's surface area

Now the volumes :

Cube A volume is 2x2x2 = 8

Cube B volume is 4x4x4= 64

Cube B's volume isn't the twice of cube A's volume