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AMO 2021 - Secondary 2 (Grade 8) Question 13

AMO · AMO 2021 - Secondary 2 (Grade 8)

Question 13

Star $S$ is dilated from center $A$ to star $S^{\prime}$ as shown, with $AF=FF^{\prime}$ and $AC=CC^{\prime}$. Star $S$ has area 3.8 square inches. What is the area of $S^{\prime}$?

Question illustration
  1. Not enough information
  2. 7.6 square inches
  3. 11.4 square inches
  4. 15.2 square inches
  5. 19.0 square inches