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Age 5 to 7
Challenge Level


How many triangles can you make using sticks that are 3cm, 4cm and 5cm long?

Each side can only use one stick but a triangle can use more than one stick of the same length.



You may like to use this interactivity to try out your ideas.
You could use sticks that have 4 holes, 5 holes and 6 holes to represent the 3cm, 4cm and 5cm sticks.