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SASMO 2017 Primary 3 (Grade 3) Contest Question 12

SASMO · SASMO 2017 Primary 3 (Grade 3) Contest

Question 12

The square has area $40\text{ cm}^2$. Point $O$ is its centre. What is the area of the shaded region?

Question illustration
  1. $10\text{ cm}^2$
  2. $15\text{ cm}^2$
  3. $20\text{ cm}^2$
  4. $24\text{ cm}^2$
  5. None of the above