Question : Directions: How many faces can you count in this 3-dimensional model?
Option 1: 12
Option 2: 14
Option 3: 16
Option 4: 18
Correct Answer: 18
Solution :
According to the question figure –
There are two common faces in this cube: Front and Rear
These two faces are common for 4 cubes.
Therefore, each cube has = 6 – 2 = 4 faces
So, total number of faces = 4 × 4 + 2 = 18
Therefore, the total number of faces is 18. Hence, the fourth option is correct.