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Australian AMC 2013 - Upper Primary Question 12

AMC AUSTRALIA · Australian AMC 2013 - Upper Primary

Question 12

In the square shown, the length of the diagonal is 8 cm. What is the area of the square?

Question illustration
  1. $28\text{ cm}^2$
  2. $32\text{ cm}^2$
  3. $49\text{ cm}^2$
  4. $64\text{ cm}^2$
  5. $81\text{ cm}^2$