Answer:
52
Explanation:
There are 6 cubes with 6 sides each so →→ 6×6=36
There are 10 hidden faces. (Each time two cubes are touching, two faces are hidden. The cubes touched 5 times so that means 5×2 = 10. )
Next, you subtract →→ 36-10 = 26
Now since each face of the cubes is 2 square units, you multiply 26 by 2, which will give you 52.