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Four Triangles Puzzle

Cut four triangles from a square as shown in the picture. How many different shapes can you make by fitting the four triangles back together?

Two by One

An activity making various patterns with 2 x 1 rectangular tiles.

Shapely Tiling

Use the interactivity to make this Islamic star and cross design. Can you produce a tessellation of regular octagons with two different types of triangle?

Overlapping Circles

Age 7 to 11 Challenge Level:

 

What shaped overlaps can you make with two same-sized circles?

What shapes are 'left over'?

Overlapping Circles

What shapes can you make when the circles are different sizes?

What happens when you use more than two circles?