Question Bank • QB_EXP_GA_SPT_024 NAT • 2 Marks

Section 8: General Aptitude

Spatial: 2D/3D Paper Folding, Assembly & Projections

Subtopic: Opposite face in unfolded cube net

Question Statement:

How many outer boundary edges make up the exterior perimeter of the 6-square cube net shown in the diagram? (enter the integer count)

Answer Key:

14

Step-by-Step Solution & Explanation

A 6-square cube net has 6 faces (each with 4 edges = 24 edges). To form a tree of 6 squares in the plane, 5 interior joints connect them (10 shared edges). The outer perimeter consists of $24 - 2 \times 5 = 14$ edges.
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