Allied & ICAR Exam Bank • ALLIED_2440 MCQ • 2 Marks

Section 8: General Aptitude

Analytical & Spatial Aptitude

Subtopic: Spatial Reasoning & 3D Representations

Question Statement:

A semi-regular tessellation of squares and regular octagons has vertex configuration 4.8.8. What is the sum of the interior angles of the polygons meeting at any vertex?

Options:

  • (A) 360 degrees (90 + 135 + 135 = 360)
  • (B) 300 degrees
  • (C) 450 degrees
  • (D) 180 degrees

Answer Key:

A

Step-by-Step Solution & Explanation

Square angle is 90 deg; regular octagon angle is 135 deg. Sum = 90 + 135 + 135 = 360 degrees, which completely fills the planar angle around the vertex.
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