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

Cutting Corners

Can you make the most extraordinary, the most amazing, the most unusual patterns/designs from these triangles which are made in a special way?


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

Triangles All Around

Age 7 to 11
Challenge Level
How will you keep track of the different triangles you have created?
How are you deciding what is the same and what is different?
What do you know about the angles in a triangle?
It might help to mark the centre of the circle and to draw in some radii.