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'Sticks and Triangles' printed from http://nrich.maths.org/
Have you got some headless matches or lolly sticks or straws that
you could use to try out your ideas?
Whatever number of sticks you are trying, it might be a good idea
to start by trying to make a triangle which has just one stick as a
Can you make any triangles with a side of two sticks?
How about three sticks? Four? ...