Isometrically

Stage: 3 Challenge Level: Challenge Level:2 Challenge Level:2

How many unique symmetrical shapes can you make by shading four small triangles?

Inverted equilateral triangle fromed of 16 smaller equilateral triangles

Download and print out this Symmetrical Triangles Worksheet

It may help to begin with if you think about the same problem on squares of area nine
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Published October 2003.