Question

Which figure fits the given object to make a cube?

• A.
• B.
• C.
• D.

Hint:

In cube completion problems, focus on: - Height differences between parts, - How many unit cubes are missing, - 3D visualization from multiple angles.

Answer 1

The Correct Option is D

Step 1: Analyze the given incomplete structure.
The structure forms a staircase-like shape but is missing one vertical face to complete the cube.
Step 2: Understand what is needed.
We need a piece that fills the open vertical section and covers the gap to form a complete 3D cube.
The missing part should have a tall piece and a flat extension to align with the existing staircase pattern.
Step 3: Match with the options.
Option (A) has a flat shape — it won't complete the cube.
Option (B) is too complex and has too many vertical layers.
Option (C) does not fit the missing structure properly.
Option (D) has exactly the required vertical and horizontal parts to complete the cube.
Thus, the correct option is (D).