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Australian AMC 2013 - Upper Primary Question 10

AMC AUSTRALIA · Australian AMC 2013 - Upper Primary

Question 10

Each triangle in the diagram is equilateral. What fraction of the largest triangle is shaded?

Question illustration
  1. $\frac14$
  2. $\frac{15}{64}$
  3. $\frac13$
  4. $\frac3{16}$
  5. $\frac7{32}$