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Australian AMC 2012 - Upper Primary Question 24

AMC AUSTRALIA · Australian AMC 2012 - Upper Primary

Question 24

Damian makes a straight cut through a painted cube, dividing it into two parts. The unpainted face created by the cut could not be which of the following?
  1. an equilateral triangle
  2. a right-angled triangle
  3. a trapezium
  4. a pentagon
  5. a hexagon