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Australian AMC 2012 - Upper Primary Question 29

AMC AUSTRALIA · Australian AMC 2012 - Upper Primary

Question 29

A rhombus-shaped tile is formed by joining two equilateral triangles together. Three of these tiles are combined edge to edge to form a variety of shapes as in the example given.

How many different shapes can be formed? (Shapes which are reflections or rotations of other shapes are not considered different.)

Question illustration