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AIMO 2021 Primary 2 — Preliminary (Open Trial 1) Question 2

AIMO · AIMO 2021 Primary 2 — Preliminary (Open Trial 1)

Question 2

In the figure, the area of each equilateral triangle formed by three neighboring points is 1cm². Find the area of the figure.

Question illustration
  1. 12 cm²
  2. 15 cm²
  3. 18 cm²
  4. 21 cm²