Answer:
200in²
Explanation:
I separated the shaded face into two squares. Both squares would be 10 by 10.
Area of a square:
For each square, they have a side of 10 in.
The area for one square is 100in². This means that for the whole face, which is made out of 2 squares, the area would be 200in².
The second option should be the correct answer.