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How many triangles can you make on the 3 by 3 pegboard?

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Investigate the different shaped bracelets you could make from 18 different spherical beads. How do they compare if you use 24 beads?

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Tessellating Triangles

Can you make these equilateral triangles fit together to cover the paper without any gaps between them? Can you tessellate isosceles triangles?

Egyptian Rope

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

You could try using twelve sticks of equal length such as headless matches.