Question:

Shown below is a 3D block. Four such blocks are interlocked in a square form. What will be the top view of the blocks after interlocking?
Problem Figure

Updated On: Sep 6, 2025
  • Fig 1
  • Fig 2
  • Fig 3
  • Fig 4
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The Correct Option is A

Solution and Explanation

To solve this problem, we need to determine the top view of four 3D blocks interlocked in a square formation. Each block is represented in the image. The central task is visualizing how these blocks would form a composite structure when interlocked from a top-down perspective. Here’s the step-by-step reasoning:
  1. Identify Block Orientation: Examine how each of the four blocks would be oriented in a square while maintaining the alignment of their features illustrated in the given 3D block.
  2. Visualize Interlocking: Consider the physical binding of the blocks. Each fits into the other, forming a continuous shape when viewed from the top.
  3. Formulate the Composite Image: When interlocked, identify the pattern created by the arrangement of edges and surfaces of each block. The top view will display this arrangement in a planar 2D representation.
  4. Evaluate Options: Compare these visual cues to the provided figures to determine which matches your visualization.
The correct visual arrangement corresponds to
Fig 1
. This option presents the accurate configuration from the top after interlocking the blocks. By mentally mapping the 3D structure to its 2D top view, this choice effectively portrays the overall layout of the interlocked blocks.
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