Answer: LAST OPTION
Explanation:
To solve this problem you must:
- Calculate the surface area of one of the squares, with the formula for calculate the surface area of a square, where "s" is the lenght of any side of the square, then you obtain;
![A=s^(2)=(4mm)^(2)=16mm^(2)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/8amalpgh7jdc71mell9b2wr3wpg4vdfbow.png)
- Now, you must multiply this area by 6 (6 faces of the cube), then the results is:
![SA=16mm^(2)*6=96mm^(2)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/2382lp86zhod8rjnkhtfy4s92nufe2uqr1.png)