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IMAS 2025–2026 Upper Primary — First Round Question 12

IMAS · IMAS 2025–2026 Upper Primary — First Round

Question 12

Twelve points are evenly spaced on the circumference of a circle. These points are connected in a specific pattern to form a star polygon, as shown in the diagram below. What is the sum of the 12 interior angles, in degrees, of the star polygon?
Question illustration
  1. $90^\circ$
  2. $120^\circ$
  3. $180^\circ$
  4. $360^\circ$
  5. $720^\circ$