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Equal Equilateral Triangles

Age 14 to 16
Challenge Level Yellow star
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Here are some hexagons you could use as a starting point to explore other possibilities:


first solution
 

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Find the sum of this series of surds.

Repetitiously

Can you express every recurring decimal as a fraction?

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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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