Given: A cube with side 6.5 cm
Required: Which calculation does not show the surface area of the cube.
Step-by-step explanation:
Surface area of cube with side a is 6a².
So here the surface area of cube is
Oprion 2, 3 and 4 reflects the calculation correctly.
But option A is actually the volume of the cube, it is not a correct way to show surface area of the cube.
Final Answer: option A is correct.